01.01.01 (Real analysis, complex analysis, and functional analysis)
Birth date:
11.03.1955
E-mail:
Keywords:
mathematics.
UDC:
517.53, 517.3, 517.5, 517.51, 517.9, 530.145
Subject:
Mathematics.
Main publications:
A. I. Aptekarev, M. Yattselev, “The Gonchar–Chudnovskies conjecture and a functional analogue of the Thue–Siegel–Roth theorem”, Trans. Moscow Math. Soc., 83 (2022), 251–268
Alexander I. Aptekarev, Sergey A. Denisov, and Maxim L. Yattselev, “Self-adjoint Jacobi matrices on trees and multiple orthogonal polynomials”, Trans. of the Amer. Math. Soc., 373:2 (2020), 875–917
Alexander I. Aptekarev, Walter Van Assche, Maxim L. Yattselev, “Hermite–Padé approximants for a pair of Cauchy transforms with overlapping symmetric supports”, Commun. Pure Appl. Math., 70:3 (2017), 444–510
A. I. Aptekarev, S. A. Denisov, D. N. Tulyakov, “On a problem by Steklov”, J. Amer. Math. Soc., 29 (2016), 1117–1165
A. I. Aptekarev, “The Mhaskar–Saff Variational Principle and Location of the Shocks of Certain Hyperbolic Equations”, Contemporary Mathematics, 661 (2016), 167–186
A. I. Aptekarev, M. L. Yattselev, “Pade approximants for functions with branch points – strong asymptotics of Nuttall–Stahl polynomials”, Acta Math., 215 (2015), 217–280
A. I. Aptekarev, “Spectral Problems of High-Order Recurrences”, Amer. Math. Soc. Transl., 233 (2014), 43–61
A. I. Aptekarev, P. M. Bleher, A. B. J. Kuijlaars, “Large $n$ limit of Gaussian random matrices with external source. II”, Comm. Math. Phys., 259:2 (2005), 367–389
A. I. Aptekarev, “Sharp constants for rational approximations of analytic functions”, Sb. Math., 193:1 (2002), 1–72
A. I. Aptekarev, “Strong asymptotics of multiply orthogonal polynomials for Nikishin systems”, Sb. Math., 190:5 (1999), 631–669
A. I. Aptekarev, “A direct proof for Trefethen's conjecture”, Methods of Approximation Theory in Complex Analysis and Mathematical Physics, May 13–24, 1991, Leningrad, Lecture Notes in Math., 1550, Springer, Berlin, 1993, 147–148
A. I. Aptekarev, “Asymptotics of simultaneously orthogonal polynomials in the Angelesco case”, Math. USSR-Sb., 64:1 (1989), 57–84
A. I. Aptekarev, V. Yu. Novokshenov, Izv. RAN. Ser. Mat.
2025
2.
A. I. Aptekarev, A. V. Dyachenko, V. G. Lysov, “Step-line recurrence relations for Meixner multiple orthogonal polynomials on interlacing lattices”, Contemporary Mathematics and Its Applications: Proceedings of Sino-Russian Mathematical Meetings, Collected papers, Trudy Mat. Inst. Steklova, 330, Steklov Math. Inst., Moscow, 2025 (to appear)
3.
A. I. Aptekarev, N. A. Zaitsev, “Transparent boundary conditions for the wave equation with variable speed of sound”, Comput. Math. Math. Phys., 65:6 (2025), 1394–1410
4.
A. I. Avetisyan, A. I. Aptekarev, S. I. Bezrodnykh, V. B. Betelin, M. A. Guzev, L. M. Zelenyi, N. N. Kolachevsky, N. N. Kudryavtsev, S. A. Nikitov, G. I. Savin, E. E. Tyrtyshnikov, V. Yu. Khomich, S. L. Chernyshev, B. N. Chetverushkin, A. A. Shananin, Yu. V. Vassilevski, V. A. Gushchin, I. B. Petrov, V. F. Tishkin, M. V. Iakobovski, A. V. Babakov, V. I. Golubev, V. A. Zernov, A. I. Lobanov, I. S. Nikitin, S. S. Simakov, Yu. D. Shevelev, A. V. Favorskaya, S. V. Fortova, N. I. Khokhlov, M. S. Belotserkovska, “Academician Oleg Mikhailovich Belotserkovskii (on his 100th birthday)”, Mat. Model., 37:6 (2025), 194–196
2024
5.
A. I. Aptekarev, A. V. Dyachenko, V. G. Lysov, “Meixner Multiply Orthogonal Polynomials on Interleaved Lattices”, Math. Notes, 115:4 (2024), 642–646
6.
A. I. Aptekarev, “Szegö asymptotcs for Angelesco systems”, Keldysh Institute preprints, 2024
7.
A. I. Aptekarev, V. Yu. Novokshenov, “Asymptotics of solutions of the discrete Painlevé I equation”, Math. Notes, 116:6 (2024), 1170–1182
8.
A. I. Aptekarev, D. J. Cirilo-Lombardo, Yu. G. Rykov, “Diffeomorphic structure of evolution equations”, Journal of Geometry and Physics, 202:10 (2024), 105234 , 17 pp.
9.
A. I. Aptekarev, S. I. Bezrodnykh, M. A. Guzev, S. I. Kabanikhin, B. S. Kashin, S. V. Kislyakov, V. V. Kozlov, N. Yu. Lukoyanov, M. B. Markov, D. O. Orlov, Yu. S. Osipov, I. B. Petrov, V. P. Platonov, I. A. Taimanov, V. F. Tishkin, D. V. Treschev, E. E. Tyrtyshnikov, M. V. Yakobovskiy, “Boris Nikolaevich Chetverushkin (on his eightieth birthday)”, Russian Math. Surveys, 79:4 (2024), 739–745
2023
10.
A. I. Aptekarev, “Hyperbolic volume of 3-d manifolds, A-polynomials, numerical hypothesis testing”, Keldysh Institute preprints, 2023
11.
A. I. Aptekarev, A. Dyachenko, V. Lysov, “On perfectness of systems satisfying Pearson's equation with nonstandard parameters”, Axioms, 12:1 (2023), 89
12.
A. I. Aptekarev, Yu. Yu. Balega, D. V. Bisikalo, V. G. Bondur, L. M. Zelenyi, A. A. Petrukovich, V. A. Sadovnichy, V. A. Solov'ev, R. A. Syunyaev, A. M. Cherepashchuk, B. N. Chetverushkin, B. M. Shustov, “Mikhail Yakovlevich Marov (on his 90th birthday)”, Phys. Usp., 66:7 (2023), 747–749
2022
13.
A. I. Aptekarev, S. Yu. Dobrokhotov, D. N. Tulyakov, A. V. Tsvetkova, “Plancherel–Rotach type asymptotic formulae for multiple orthogonal Hermite polynomials and recurrence relations”, Izv. Math., 86:1 (2022), 32–91
14.
Michel Alexis, Alexander Aptekarev, Sergey Denisov, “Continuity of weighted operators, muckenhoupt $A_p$ weights, and Steklov problem for orthogonal polynomials”, Int. Math. Res. Not. IMRN, 2022, no. 8, 5935–5972
A. I. Aptekarev, V. A. Kalyagin, “Spectral problem for the vector Stieltjes string”, Russian Math. Surveys, 77:5 (2022), 946–948
16.
A. I. Aptekarev, Yu. G. Rykov, “Emergence of a Hierarchy of Singularities in Zero-Pressure Media. Two-Dimensional Case”, Math. Notes, 112:4 (2022), 495–504
17.
A. I. Aptekarev, M. Yattselev, “The Gonchar–Chudnovskies conjecture and a functional analogue of the Thue–Siegel–Roth theorem”, Trans. Moscow Math. Soc., 83 (2022), 251–268
18.
A. I. Aptekarev, T. N. Dudnikova, D. N. Tulyakov, “Volume conjecture and WKB asymptotics”, Lobachevskii Journal of Mathematics, 43:8 (2022), 2056–2079
A. I. Aptekarev, “Convergence of Bieberbach polynomials: Keldysh's theorems and Mergelyan's conjecture”, Russian Math. Surveys, 76:3 (2021), 379–387
20.
A. I. Aptekarev, V. G. Lysov, “Multilevel interpolation for Nikishin systems and boundedness of Jacobi matrices on binary trees”, Russian Math. Surveys, 76:4 (2021), 726–728
21.
A. I. Aptekarev, “Weak and strong asymptotics of orthogonal polynomials with «varying» weight”, Dedicated to 70th anniversary of the President of the RUDN University V. M. Filippov, CMFD, 67, no. 3, PFUR, M., 2021, 427–441
2024
22.
A. I. Aptekarev, “Weak and strong asymptotics of orthogonal polynomials with varying weights”, Journal of Mathematical Sciences, 278:2 (2024), 211-224
2021
23.
A. I. Aptekarev, E. D. Belega, J. S. Dehesa, “Rydberg multidimensional states: Rényi and Shannon entropies in momentum space”, J. Phys. A: Math. Theor., 54:3 (2021), 035305 , 19 pp.
A. I. Aptekarev, T. V. Dudnikova, D. N. Tulyakov, “Recurrence Relations and Asymptotics of Colored Jones Polynomials”, Lobachevskii J. Math., 42:11 (2021), 2580–2595
A. I. Aptekarev, S. A. Denisov, M. L. Yattselev, “Jacobi matrices on trees generated by Angelesco systems: asymptotics of coefficients and essential spectrum”, J. Spectr. Theory, 11:4 (2021), 1511–1597
B. N. Chetverushkin, A. I. Aptekarev, “In memory of Nikolay Nikolaevich Kalitkin”, Matem. Mod., 33:2 (2021), 141–142
27.
A. I. Aptekarev, D. E. Apushkinskaya, O. V. Besov, V. I. Burenkov, V. V. Vlasov, R. V. Gamkrelidze, M. L. Gol'dman, G. V. Demidenko, V. G. Zadorozhniy, V. V. Kozlov, G. G. Lazareva, S. P. Novikov, V. M. Savchin, V. A. Sadovnichii, A. L. Skubachevskii, A. P. Soldatov, D. V. Treschev, M. A. Ragusa, H.-O. Walther, “Vladimir Mikhailovich Filippov”, Dedicated to 70th anniversary of the President of the RUDN University V. M. Filippov, CMFD, 67, no. 3, PFUR, M., 2021, 423–426
2020
28.
A. I. Aptekarev, S. A. Denisov, M. L. Yattselev, “Discrete Schrödinger Operator on a Tree, Angelesco Potentials, and Their Perturbations”, Proc. Steklov Inst. Math., 311 (2020), 1–9
29.
Alexander I. Aptekarev, Sergey A. Denisov, and Maxim L. Yattselev, “Self-adjoint Jacobi matrices on trees and multiple orthogonal polynomials”, Trans. of the Amer. Math. Soc., 373:2 (2020), 875–917
Alexander I. Aptekarev, Rostyslav Kozhan, “Differential equations for the recurrence coefficients limits for multiple orthogonal polynomials from a Nevai class”, J. Approx. Theory, 255 (2020), 105409 , 21 pp.
Jesús S. Dehesa, Elena D. Belega, Irene V. Toranzo, Alexander I. Aptekarev, “The Shannon entropy of high-dimensional hydrogenic and harmonic systems”, Int. J. Quantum Chem., 119:18 (2019), e25977 , 17 pp.
A. I. Aptekarev, Yu. G. Rykov, “Detailed description of the evolution mechanism for singularities in the system of pressureless gas dynamics”, Dokl. Math., 99:1 (2019), 79–82
33.
A. I. Aptekarev, Yu. G. Rykov, “Variational principle for multidimensional conservation laws and pressureless media”, Russian Math. Surveys, 74:6 (2019), 1117–1119
34.
A. I. Aptekarev, M. A. Lapik, V. G. Lysov, “Direct and inverse problems for vector logarithmic potentials with external fields”, Anal. Math. Phys., 9:3 (2019), 919–935
A. I. Aptekarev, A. M. Akhtyamov, O. V. Besov, A. A. Vladimirov, B. S. Kashin, K. A. Mirzoev, S. N. Naboko, R. O. Oinarov, I. V. Sadovnichaya, A. M. Savchuk, A. G. Sergeev, V. D. Stepanov, Ya. T. Sultanaev, D. V. Treschev, I. A. Sheipak, “Andrei Andreevich Shkalikov (on his seventieth birthday)”, Trans. Moscow Math. Soc., 80 (2019), 113–122
2018
36.
A. I. Aptekarev, S. A. Denisov, M. L. Yattselev, “Selfadjoint Jacobi matrices on graphs and multiple orthogonal polynomials”, Keldysh Institute preprints, 2018
37.
A. I. Aptekarev, D. N. Tulyakov, “Hesse Parametrization of a Spectral Curve”, Math. Notes, 104:5 (2018), 745–748
38.
A. I. Aptekarev, D. N. Tulyakov, “Asymptotical basis of solutions of $q$-recurrence relations outside of the zone of clustering eigenvalues”, Keldysh Institute preprints, 2018
39.
A. I. Aptekarev, E. D. Belega, “Asymptotic behaviour of the information entropy of hydrogen-like quantum systems”, Russian Math. Surveys, 73:5 (2018), 922–924
40.
A. I. Aptekarev, R. Kozhan, “Differential equations for the radial limits in $\mathbb{Z}_+^2$ of the solutions of a discrete integrable system”, Preprinty IPM im. M. V. Keldysha, 2018, 214 , 20 pp.
41.
A. I. Aptekarev, A. Draux, D. N. Tulyakov, “On Asymptotics of the Sharp Constants of the Markov–Bernshtein Inequalities for the Sobolev Spaces”, Lobachevskii J. Math., 39:5 (2018), 609–622
Kompleksnyi analiz, matematicheskaya fizika i prilozheniya, Sbornik statei, Trudy MIAN, 301, ed. A. I. Aptekarev, M. O. Katanaev, S. P. Suetin, MAIK «Nauka/Interperiodika», M., 2018 , 335 pp.
43.
L. A. Aksent'ev, A. I. Aptekarev, A. M. Bikchentaev, V. V. Goryainov, V. N. Dubinin, A. M. Elizarov, I. R. Kayumov, A. Laptev, S. R. Nasyrov, D. V. Prokhorov, A. G. Sergeev, V. D. Stepanov, “Farit Gabidinovich Avkhadiev (on his 70th birthday)”, Russian Math. Surveys, 73:1 (2018), 181–185
44.
A. I. Aptekarev, O. P. Vinogradov, V. N. Dubrovsky, M. Koloskova, T. P. Lukashenko, I. I. Mel'nikov, Yu. V. Nesterenko, M. K. Potapov, I. Yu. Selivanova, K. V. Semenov, I. N. Sergeev, A. P. Solodov, A. I. Strogova, V. N. Chubarikov, E. V. Shivrinskaya, “Valerii Vasil'evich Vavilov (30.06.1946 – 21.10.2016)”, Vestnik Moskov. Univ. Ser. 1. Mat. Mekh., 2018, no. 1, 71–72
45.
A. I. Aptekarev, V. M. Buchstaber, V. A. Vassiliev, M. L. Gromov, Yu. S. Ilyashenko, B. S. Kashin, V. M. Keselman, V. V. Kozlov, M. L. Kontsevich, I. M. Krichever, N. G. Kruzhilin, S. K. Lando, Yu. I. Manin, G. A. Margulis, S. Yu. Nemirovski, S. P. Novikov, Yu. G. Reshetnyak, Ya. G. Sinai, S. P. Suetin, D. V. Treschev, D. B. Fuchs, A. G. Khovanskii, E. M. Chirka, A. S. Schwarz, A. N. Shiryaev, “Vladimir Antonovich Zorich (on his 80th birthday)”, Russian Math. Surveys, 73:5 (2018), 935–939
46.
A. I. Aptekarev, V. K. Beloshapka, V. I. Buslaev, V. V. Goryainov, V. N. Dubinin, V. A. Zorich, N. G. Kruzhilin, S. Yu. Nemirovski, S. Yu. Orevkov, P. V. Paramonov, S. I. Pinchuk, A. S. Sadullaev, A. G. Sergeev, S. P. Suetin, A. B. Sukhov, K. Yu. Fedorovskiy, A. K. Tsikh, “Evgenii Mikhailovich Chirka (on his 75th birthday)”, Russian Math. Surveys, 73:6 (2018), 1137–1144
2017
47.
A. I. Aptekarev, A. I. Bogolyubskii, M. Yattselev, “Convergence of ray sequences of Frobenius-Padé approximants”, Sb. Math., 208:3 (2017), 313–334
48.
A. I. Aptekarev, M. A. Lapik, Yu. N. Orlov, “Asymptotic behavior of the spectrum of combination scattering at Stokes phonons”, Theoret. and Math. Phys., 193:1 (2017), 1480–1497
49.
A. I. Aptekarev, G. López Lagomasino, A. Martínez-Finkelshtein, “On Nikishin systems with discrete components and weak asymptotics of multiple orthogonal polynomials”, Russian Math. Surveys, 72:3 (2017), 389–449
50.
A. I. Aptekarev, D. N. Tulyakov, “The Hesse coordinates for an algebraic cubic curve”, Keldysh Institute preprints, 2017
51.
A. I. Aptekarev, A. Draux, D. N. Tulyakov, “On asymptotics of the sharp constants of the Markov–Bernshtein inequalities for the Sobolev spaces with coherent weights”, Preprinty IPM im. M. V. Keldysha, 2017, 59 , 20 pp.
52.
Alexander I. Aptekarev, Walter Van Assche, Maxim L. Yattselev, “Hermite–Padé approximants for a pair of Cauchy transforms with overlapping symmetric supports”, Commun. Pure Appl. Math., 70:3 (2017), 444–510
A. I. Aptekarev, A. L. Afendikov, F. I. Ataullakhanov, N. K. Balabaev, V. N. Biktashev, I. V. Biktasheva, R. M. Borisyuk, N. D. Vvedenskaya, R. D. Dagkesamanskii, Yu. G. Zarkhin, Yu. S. Ilyashenko, V. D. Lakhno, V. Yu. Lunin, N. L. Lunina, E. V. Nikolaev, V. S. Posvyanskii, M. A. Roitberg, V. S. Ryaben'kii, L. B. Ryashko, Ya. G. Sinai, V. M. Tikhomirov, A. A. Tokarev, A. G. Urzhumtsev, A. I. Khibnik, “To the memory of Èmmanuil Èl'evich Shnol'”, Russian Math. Surveys, 72:1 (2017), 185–198
54.
M. V. Abakumov, A. I. Aptekarev, M. P. Galanin, M. K. Kerimov, O. S. Mazhorova, G. G. Malinetskii, S. I. Mukhin, Yu. A. Poveschenko, B. N. Chetverushkin, V. M. Chechetkin, Zh. Vychisl. Mat. Mat. Fiz., 57:7 (2017), 1231–1240
2016
55.
A. I. Aptekarev, S. A. Denisov, “The Steklov problem and estimates for orthogonal polynomials with $A_p(\mathbb{T})$ weights”, Keldysh Institute preprints, 2016, 40–19
56.
Alexander I. Aptekarev, Maxim Derevyagin, Hiroshi Miki, Walter Van Assche, “Multidimensional Toda Lattices: Continuous and Discrete Time”, SIGMA, 12 (2016), 54, 54–30 , 30 pp., arXiv: 1511.08098
A. I. Aptekarev, D. N. Tulyakov, “Nuttall's Abelian integral on the Riemann surface of the cube root of a polynomial of degree 3”, Izv. Math., 80:6 (2016), 997–1034
58.
A. I. Aptekarev, S. A. Denisov, D. N. Tulyakov, “On a problem by Steklov”, J. Amer. Math. Soc., 29 (2016), 1117–1165
A. I. Aptekarev, M. Derevyagin, W. Van Assche, “Discrete integrable systems generated by Hermite–Padé approximants”, Nonlinearity, 29 (2016), 1487–1506
A. I. Aptekarev, “The Mhaskar–Saff Variational Principle and Location of the Shocks of Certain Hyperbolic Equations”, Contemporary Mathematics, 661 (2016), 167–186
A. I. Aptekarev, D. N. Tulyakov, I. V. Toranzo, J. S. Dehesa, “Renyi entropies of the highly-excited states of multidimensional harmonic oscillators by use of strong Laguerre asymptotics”, Eur. Phys. J. B, 89:85 (2016) , 13 pp.
62.
A. I. Aptekarev, J. S. Geronimo, “Measures for orthogonal polynomials with unbounded recurrence coefficients”, Journal of Approximation Theory, 207 (2016), 339–347
A. I. Aptekarev, M. L. Yattselev, “Approximations of algebraic functions by rational ones — functional analogues of diophantine approximants”, Keldysh Institute preprints, 2016
64.
A. I. Aptekarev, A. B. Batkhin, A. D. Bruno, “Vladimir Igorevich Parusnikov”, Chebyshevskii Sb., 17:1 (2016), 286–298
2015
65.
A. I. Aptekarev, S. A. Denisov, D. N. Tulyakov, “V.A. Steklov's Problem of Estimating the Growth of Orthogonal Polynomials”, Proc. Steklov Inst. Math., 289 (2015), 72–95
66.
A. I. Aptekarev, D. N. Tulyakov, “The Saturation Regime of Meixner Polynomials and the Discrete Bessel Kernel”, Math. Notes, 98:1 (2015), 180–184
67.
A. I. Aptekarev, D. N. Tulyakov, “Asymptotics of $L_p$-norms of Laguerre polynomials and entropic moments of $D$-dimensional oscillator”, Preprinty IPM im. M. V. Keldysha, 2015, 41–15
A. I. Aptekarev, D. N. Tulyakov, “Asymptotics of $L_p$-norms of Laguerre polynomials”, Russian Math. Surveys, 70:5 (2015), 955–957
69.
A. I. Aptekarev, S. A. Denisov, M. Yattselev, “Completely integrable on $\mathbb{Z}_+^d$ potentials for electromagnetic Schrodinger operator: rays asymptotics and scattering problem”, Keldysh Institute preprints, 2015, 88–20
70.
A. I. Aptekarev, D. N. Tulyakov, M. Yattselev, “On the Parametrization of a Certain Algebraic Curve of Genus 2”, Math. Notes, 98:5 (2015), 843–846
71.
A. I. Aptekarev, M. L. Yattselev, “Pade approximants for functions with branch points – strong asymptotics of Nuttall–Stahl polynomials”, Acta Math., 215 (2015), 217–280
A. I. Aptekarev, A. Draux, V. A. Kalyagin, D. N. Tulyakov, “Asymptotics of sharp constants of Markov–Bernstein inequalities in integral norm with jacobi weight”, Proceedings of the American Mathematical Society, 143:9 (2015), 3847–3862
A. I. Aptekarev, M. Derevyagin, W. Van Assche, “On $2D$ discrete Schrödinger operators associated with multiple orthogonal polynomials”, J. Phys. A: Math. Theor., 48:6 (2015), 065201 , 16 pp.
A. I. Aptekarev, G. Lopes-Lagomasino, A. Martines-Finkelshtein, “Cilnaya asimptotika sovmestno ortogonalnykh mnogochlenov Pollacheka”, Doklady Akademii Nauk, 465:4 (2015), 393–397
75.
A. I. Aptekarev, D. N. Toulyakov, W. Van Assche, “Hyperelliptic uniformization of algebraic curves of the third order”, Journal Computational and Applied Mathematics, 284 (2015), 38–49
A. I. Aptekarev, D. N. Tulyakov, “Abelian integral of Nuttall on the Riemann surface of the cubic root of the third degree polynomial”, Keldysh Institute preprints, 2014, 15–25
77.
A. I. Aptekarev, D. N. Tulyakov, “The leading term of the Plancherel-Rotach asymptotic formula for solutions of recurrence relations”, Sb. Math., 205:12 (2014), 1696–1719
78.
A. I. Aptekarev, A. I. Bogolyubsky, “Matrix Riemann–Hilbert problems for Pade approximants of orthogonal expansions”, Keldysh Institute preprints, 2014, 103–16
79.
A. I. Aptekarev, “Spectral Problems of High-Order Recurrences”, Amer. Math. Soc. Transl., 233 (2014), 43–61
A. I. Aptekarev, A. L. Afendikov, V. M. Buchstaber, S. K. Godunov, A. B. Zhizhchenko, V. V. Kozlov, A. I. Maslov, V. P. Platonov, V. F. Tishkin, L. D. Faddeev, “Boris Nikolaevich Chetverushkin (on his 70th birthday)”, Russian Math. Surveys, 69:2 (2014), 387–392
82.
A. I. Aptekarev, P. A. Borodin, B. S. Kashin, Yu. V. Nesterenko, P. V. Paramonov, A. V. Pokrovskii, A. G. Sergeev, A. T. Fomenko, “Evgenii Prokof'evich Dolzhenko (on his 80th birthday)”, Russian Math. Surveys, 69:6 (2014), 1143–1148
83.
A. Aptekarev, P. Nevai, V. Totik, “In memoriam: Herbert Stahl, August 3, 1942–April 22, 2013”, Journal Approximation Theory, 183 (2014), A1–A26
A. I. Aptekarev, D. N. Tulyakov, “Main term of asymptotics of the solutions of the four-terms recurrence relations”, Keldysh Institute preprints, 2013, 1–20
85.
A. I. Aptekarev, V. S. Buyarov, “On the Resolvent of the Gauss Operator”, Math. Notes, 94:4 (2013), 590–593
86.
A. I. Aptekarev, S. A. Denisov, D. N. Tulyakov, “Fejer convolutions for an extremal problem in the Steklov class”, Preprinty IPM, 2013, 76–19
2012
87.
A. I. Aptekarev, D. N. Tulyakov, “Asymptotics of Meixner polynomials and Christoffel-Darboux kernels”, Trans. Moscow Math. Soc., 2012, 67–106
88.
A. I. Aptekarev, D. N. Tulyakov, “Geometry of Hermite-Padé approximants for system of functions $\{f,f^2\}$ with three branch points”, Preprinty IPM, 2012, 77–25
A. I. Aptekarev, D. N. Tulyakov, “Asymptotics of $L_p$-norms of Hermite polynomials”, Preprinty IPM, 2012, 70–22
90.
A. I. Aptekarev, R. È. Akhmedov, V. S. Buyarov, “Representation of the Gauss-Babenko operator in the power series basis”, Keldysh Institute preprints, 2012, 69–23
91.
A. I. Aptekarev, “Integrable Semidiscretization of Hyperbolic Equations – “Computational” Dispersion and Multidimensional Perspective”, Keldysh Institute preprints, 2012, 20–28
92.
A. I. Aptekarev, J. S. Dehesa, P. Sánchez-Moreno, D. N. Tulyakov, “Asymptotics of $Lp$-norms of Hermite polynomials and Renyi entropy of Rydberg oscillator states”, Contemporary Mathematics, 578 (2012), 19–29
A. I. Aptekarev, J. S. Dehesa, P. Sánchez-Moreno, D. N. Tulyakov, “Rényi entropy of the infinite well potential in momentum space and Dirichlet-like trigonometric functionals”, J. Math. Chem., 50 (2012), 1079–1090
A. I. Aptekarev, D. N. Tulyakov, “Asymptotic regimes in saturation zones for the C-D-kernels for an ensemble of Meixner orthogonal polynomials”, Russian Math. Surveys, 66:1 (2011), 173–175
95.
A. I. Aptekarev, V. G. Lysov, D. N. Tulyakov, “Random matrices with external source and the asymptotic behaviour of multiple orthogonal polynomials”, Sb. Math., 202:2 (2011), 155–206
96.
A. I. Aptekarev, A. Kuijlaars, “Hermite–Padé approximations and multiple orthogonal polynomial ensembles”, Russian Math. Surveys, 66:6 (2011), 1133–1199
97.
A. I. Aptekarev, V. I. Buslaev, A. Martínez-Finkelshtein, S. P. Suetin, “Padé approximants, continued fractions, and orthogonal polynomials”, Russian Math. Surveys, 66:6 (2011), 1049–1131
98.
A. I. Aptekarev, A. L. Afendikov, B. N. Chetverushkin, “M. V. Keldysh, scientist and statesman (on the centenary of his birth)”, Russian Math. Surveys, 66:1 (2011), 183–196
99.
A. I. Aptekarev, G. López Lagomasino, E. B. Saff, V. Totik, H. Stahl, “Andrei Aleksandrovich Gonchar (on his 80th birthday)”, Russian Math. Surveys, 66:6 (2011), 1209–1216
100.
A. I. Aptekarev, “Matematicheskii portret”, Priroda, 2011, no. 2, 42–49
2010
101.
A. I. Aptekarev, V. G. Lysov, “Systems of Markov functions generated by graphs and the asymptotics of their Hermite-Padé approximants”, Sb. Math., 201:2 (2010), 183–234
102.
A. I. Aptekarev, J. S. Dehesa, A. Martínez-Finkelshtein, R. J. Yáñez, “Quantum expectation values of $D$-dimensional Rydberg hydrogenic states by use of Laguerre and Gegenbauer asymptotics”, J. Phys. A, 43:14 (2010), 145204 , 10 pp.
A. I. Aptekarev, J. S. Dehesa, A. Martinez-Finkelshtein, “Asymptotics of orthogonal polynomial's entropy”, J. Comput. Appl. Math., 233:6 (2010), 1355–1365
A. I. Aptekarev, V. G. Lysov, D. N. Tulyakov, “Global eigenvalue distribution regime of random matrices with an anharmonic potential and an external source”, Theoret. and Math. Phys., 159:1 (2009), 448–468
105.
A. I. Aptekarev, V. A. Kalyagin, V. G. Lysov, D. N. Toulyakov, “Equilibrium of vector potentials and uniformization of the algebraic curves of genus 0”, J. Comput. Appl. Math., 233:3 (2009), 602–616
A. I. Aptekarev, D. N. Tulyakov, “On the determinant of an integral lattice generated by rational approximants of the Euler constant”, Tr. Mosk. Mat. Obs., 70 (2009), 329–345
107.
A. I. Aptekarev, V. A. Kalyagin, E. B. Saff, “Higher-order three-term recurrences and asymptotics of multiple orthogonal polynomials”, Constr. Approx., 30:2 (2009), 175–223
A. I. Aptekarev, J. S. Dehesa, A. Martínez-Finkelshtein, R. J. Yáñez, “Discrete entropies of orthogonal polynomials”, Constr. Approx., 30:1 (2009), 93–119
A. I. Aptekarev, “Asymptotics of Hermite-Padé approximants for a pair of functions with branch points”, Dokl. Math., 78:2 (2008), 717–719
110.
A. I. Aptekarev, J. S. Geronimo, Van W. Assche, “Varying weights for orthogonal polynomials with monotonically varying recurrence coefficients”, J. Approx. Theory, 150:2 (2008), 214–238
A. I. Aptekarev, “Matrix Riemann–Hilbert analysis for the case of higher genus — asymptotics of polynomials orthogonal on a system of intervals”, Preprinty IPM, 2008, 28–23
A. I. Aptekarev, “Preface”, Proc. Steklov Inst. Math., 272, suppl. 2 (2011), 138–141
2007
113.
A. Aptekarev, R. Khabibullin, “Asymptotic series for polynomials orthogonal with respect to a complex varying weight”, Tr. Mosk. Mat. Obs., 68 (2007), 3–43
114.
A. I. Aptekarev, A. B. J. Kuijlaars, Van W. Assche, “Asymptotics of Hermite-Padé rational approximants for two analytic functions with separated pairs of branch points (case of genus 0)”, Int. Math. Res. Pap. IMRP, 2007, no. 4, Art. ID rpm007, 128 pp. (2008)
2011
115.
A. I. Aptekarev, D. N. Tulyakov, “Four-termed recurrence relations for $\gamma$-forms”, Proc. Steklov Inst. Math., 272, suppl. 2 (2011), 157–161
116.
A. I. Aptekarev, V. G. Lysov, “Asymptotics of $\gamma$-forms jointly generated by orthogonal polynomials”, Proc. Steklov Inst. Math., 272, suppl. 2 (2011), 168–173
2007
117.
A. I. Aptekarev, V. G. Lysov, D. N. Tulyakov, “Three-sheeted Riemann surfaces of genus 0 with fixed projections of the branch points”, Keldysh Institute preprints, 2007, 13–21
118.
M. S. Agranovich, A. I. Aptekarev, A. L. Afendikov, N. D. Vvedenskaya, M. I. Vishik, S. G. Gindikin, M. M. Malamud, B. P. Paneah, E. V. Radkevich, V. M. Tikhomirov, A. R. Shirikyan, “Leonid Romanovich Volevich (obituary)”, Russian Math. Surveys, 62:6 (2007), 1187–1190
119.
Ratsionalnye priblizheniya postoyannoi Eilera i rekurrentnye sootnosheniya, Sbornik statei, Sovr. probl. matem., 9, ed. A. I. Aptekarev, MIAN, M., 2007 , 84 pp.
2006
120.
A. I. Aptekarev, Yu. G. Rykov, “On a variational representation of solutions of a hyperbolic system of equations by means of the logarithmic potential in an external field”, Dokl. Akad. Nauk, 409:1 (2006), 12–14
A. I. Aptekarev, Yu. G. Rykov, “On the variational representation of solutions to some quasilinear equations and systems of hyperbolic type on the basis of potential theory”, Russ. J. Math. Phys., 13:1 (2006), 4–12
A. Aptekarev, A. Cachafeiro, F. Marcellán, “A scalar Riemann boundary value problem approach to orthogonal polynomials on the circle”, J. Approx. Theory, 141:2 (2006), 174–181
A. I. Aptekarev, V. Kalyagin, López G. Lagomasino, I. A. Rocha, “On the limit behavior of recurrence coefficients for multiple orthogonal polynomials”, J. Approx. Theory, 139:1-2 (2006), 346–370
A. I. Aptekarev, G. López Lagomasino, I. Alvarez Rocha, “Ratio asymptotics of Hermite–Padé polynomials for Nikishin systems”, Sb. Math., 196:8 (2005), 1089–1107
125.
A. I. Aptekarev, P. M. Bleher, A. B. J. Kuijlaars, “Large $n$ limit of Gaussian random matrices with external source. II”, Comm. Math. Phys., 259:2 (2005), 367–389
A. I. Aptekarev, L. R. Volevich, É. P. Kazandjan, “Numerical method of solving the direct and inverse problems of conformal mappings”, Russ. J. Math. Phys., 11:3 (2004), 277–288
127.
A. I. Aptekarev, L. R. Volevich, “Some mathematical aspects of potential flow computation”, Russ. J. Math. Phys., 11:3 (2004), 259–276
128.
A. I. Aptekarev, Van W. Assche, “Scalar and matrix Riemann-Hilbert approach to the strong asymptotics of Padé approximants and complex orthogonal polynomials with varying weight”, J. Approx. Theory, 129:2 (2004), 129–166
M. S. Agranovich, A. I. Aptekarev, N. D. Vvedenskaya, M. I. Vishik, S. G. Gindikin, A. M. Il'in, V. P. Maslov, M. M. Malamud, B. P. Paneah, V. M. Tikhomirov, A. R. Shirikyan, “Leonid Romanovich Volevich (on his 70th birthday)”, Russian Math. Surveys, 59:5 (2004), 991–1000
130.
A. I. Aptekarev, A. L. Afendikov, V. V. Voevodin, et al., “Yulian Borisovich Radvogin”, Russ. J. Math. Phys., 11:3 (2004), 243–249
2003
131.
A. I. Aptekarev, A. Branquinho, Van W. Assche, “Multiple orthogonal polynomials for classical weights”, Trans. Amer. Math. Soc., 355:10 (2003), 3887–3914 (electronic)
A. I. Aptekarev, “Sharp constants for rational approximations of analytic functions”, Sb. Math., 193:1 (2002), 1–72
134.
A. I. Aptekarev, A. Draux, D. Toulyakov, “Discrete spectra of certain co-recursive Pollaczek polynomials and its applications”, Comput. Methods Funct. Theory, 2:2 (2002), 519–537
A. I. Aptekarev, G. T. López Lagomasino, F. Marcellán, “Orthogonal polynomials with respect to a differential operator. Existence and uniqueness”, Conference on Special Functions (Tempe, AZ, 2000), Rocky Mountain J. Math., 32:2 (2002), 467–481
A. I. Aptekarev, M. A. Lapik, “Lagrange Spectrum and Dynamics on the Invariant Sets of Linear-Fractional IFS-s.”, Keldysh Institute preprints, 2002, 43–I
2001
137.
A. I. Aptekarev, Van W. Assche, “Asymptotics of discrete orthogonal polynomials and the continuum limit of the Toda lattice”, Symmetries and integrability of difference equations (Tokyo, 2000), J. Phys. A, 34:48 (2001), 10627–10637
A. I. Aptekarev, W. Van Assche, “A matrix Riemann-Hilbert problem approach to the strong asymptotics of orthogonal polynomials with respect to a complex weight”, Keldysh Institute preprints, 2001, 27–I
139.
A. I. Aptekarev, W. Van Assche, S. P. Suetin, “A scalar Riemann problem approach to the strong asymptotics of Padé approximates and orthogonal polynomials”, Keldysh Institute preprints, 2001, 26–I
2000
140.
A. I. Aptekarev, A. Draux, V. A. Kalyagin, “On the asymptotics of sharp constants in Markov–Bernstein inequalities in integral metrics with classical weight”, Russian Math. Surveys, 55:1 (2000), 163–165
141.
A. I. Aptekarev, Kastro M. Smirnova, “Convergence of vector Stieltjes continued fractions”, Dokl. Akad. Nauk, 375:6 (2000), 727–729
142.
A. Aptekarev, E. Berriochoa, A. Cachafeiro, “On a characterization of integrability for the reciprocal weight of orthogonal polynomials on the circle”, Acta Appl. Math., 61:1-3 (2000), 81–86
143.
A. Aptekarev, V. Kaliaguine, Van J. Iseghem, “The genetic sums' representation for the moments of a system of Stieltjes functions and its application”, Constr. Approx., 16:4 (2000), 487–524
A. I. Aptekarev, W. Van Assche, A. B. Kuijlaars, “The continuum limit of the Toda lattice and discrete orthogonal polynomials”, Keldysh Institute preprints, 2000, 12–I
1999
145.
A. I. Aptekarev, “Strong asymptotics of multiply orthogonal polynomials for Nikishin systems”, Sb. Math., 190:5 (1999), 631–669
146.
A. I. Aptekarev, V. A. Kaliaguine, “On a generalization of the nonlinear Langmuir chains”, Self-similar systems (1998, Dubna), Joint Inst. Nuclear Res., Dubna, 1999, 289–294
147.
A. Aptekarev, E. Berriochoa, A. Cachafeiro, “Strong asymptotics for the continuous Sobolev orthogonal polynomials on the unit circle”, J. Approx. Theory, 100:2 (1999), 381–391
A. Aptekarev, V. Kaliaguine, “Complex rational approximation and difference operators”, Rend. Circ. Mat. Palermo (2) Suppl., I:52 (1998), 3–21
150.
J. S. Dehesa, R. J. Yáñez, A. I. Aptekarev, V. Buyarov, “Strong asymptotics of Laguerre polynomials and information entropies of two-dimensional harmonic oscillator and one-dimensional Coulomb potentials”, J. Math. Phys., 39:6 (1998), 3050–3060
A. I. Aptekarev, F. Marcellán, I. A. Rocha, “Semiclassical multiple orthogonal polynomials and the properties of Jacobi-Bessel polynomials”, J. Approx. Theory, 90:1 (1997), 117–146
A. I. Aptekarev, A. Branquinho, F. Marcellán, “Toda-type differential equations for the recurrence coefficients of orthogonal polynomials and Freud transformation”, J. Comput. Appl. Math., 78:1 (1997), 139–160
A. I. Aptekarev, V. S. Buyarov, Van V. Asse, I. S. Degeza, “Asymptotics of entropy integrals for orthogonal polynomials”, Dokl. Akad. Nauk, 346:4 (1996), 439–441
S. P. Novikov, A. I. Aptekarev, E. P. Dolzhenko, V. A. Kalyagin, V. V. Kozlov, Yu. V. Nesterenko, M. K. Potapov, V. N. Sorokin, P. L. Ul'yanov, “Evgenii Mikhailovich Nikishin (on the fiftieth anniversary of his birth)”, Russian Math. Surveys, 51:2 (1996), 361–362
1995
155.
A. I. Aptekarev, V. Kaliaguine, Van W. Assche, “Criterion for the resolvent set of nonsymmetric tridiagonal operators”, Proc. Amer. Math. Soc., 123:8 (1995), 2423–2430
A. I. Aptekarev, V. A. Kalyagin, V. V. Kozlov, M. K. Potapov, V. N. Sorokin, P. L. Ul'yanov, A. T. Fomenko, A. B. Shidlovskiĭ, “Evgeniĭ Mikhaĭlovich Nikishin”, Vestnik Moskov. Univ. Ser. I Mat. Mekh., 1995, no. 6, 110–111
157.
A. I. Aptekarev, V. S. Buyarov, I. S. Degeza, “Asymptotic behavior of the $l^P$-norms and the entropy for general orthogonal polynomials”, Russian Acad. Sci. Sb. Math., 82:2 (1995), 373–395
1993
158.
A. I. Aptekarev, “A direct proof for Trefethen's conjecture”, Methods of Approximation Theory in Complex Analysis and Mathematical Physics, May 13–24, 1991, Leningrad, Lecture Notes in Math., 1550, Springer, Berlin, 1993, 147–148
159.
A. I. Aptekarev, “Asymptotics of orthogonal polynomials in a neighborhood of the endpoints of the interval of orthogonality”, Russian Acad. Sci. Sb. Math., 76:1 (1993), 35–50
1992
160.
A. I. Aptekarev, H. Stahl, “Asymptotics of Hermite-Padé polynomials”, Progress in approximation theory (1990, Tampa, FL), Springer Ser. Comput. Math., 19, Springer, New York, 1992, 127–167
A. I. Aptekarev, “Asymptotics of simultaneously orthogonal polynomials in the Angelesco case”, Math. USSR-Sb., 64:1 (1989), 57–84
1988
162.
A. I. Aptekarev, L. R. Volevich, “The finite element method in a problem of subsonic potential flows of compressible gas around bodies”, Akad. Nauk SSSR Inst. Prikl. Mat. Preprint, 1988, no. 74, 26
163.
A. I. Aptekarev, L. R. Volevich, “Calculation of subsonic potential flow around smooth and pointed profiles by means of higher-order finite elements”, Akad. Nauk SSSR Inst. Prikl. Mat. Preprint, 1988, no. 103, 25
164.
A. I. Aptekarev, “Asymptotics of orthogonal polynomials with matrix coefficients”, Akad. Nauk SSSR Inst. Prikl. Mat. Preprint, 1988, no. 71, 28
165.
A. I. Aptekarev, L. R. Volevich, “Calculation of axially symmetric potential subsonic flows by means of higher-order finite elements”, Akad. Nauk SSSR Inst. Prikl. Mat. Preprint, 1988, no. 101, 27
1987
166.
A. I. Aptekarev, “Asymptotic behavior of polynomials of simultaneous orthogonality and of a system of extremal problems for analytic functions”, Akad. Nauk SSSR Inst. Prikl. Mat. Preprint, 1987, no. 168, 29
167.
A. I. Aptekarev, V. A. Kalyagin, “Analytic properties of two-dimensional continued $P$-fraction expansions with periodic coefficients and their simultaneous Padé-Hermite approximants”, Rational approximation and applications in mathematics and physics (Łańcut, 1985), Lecture Notes in Math., 1237, Springer, Berlin, 1987, 145–160
A. I. Aptekarev, V. V. Kozlov, A. M. Olevskiĭ, M. K. Potapov, P. L. Ul'yanov, A. B. Shidlovskiĭ, “In memory of Evgeniĭ Mikhaĭlovich Nikishin”, Vestnik Moskov. Univ. Ser. I Mat. Mekh., 1987, no. 6, 88–91
1986
169.
A. I. Aptekarev, “Forced motions of a one-sided Langmuir chain”, Theory of functions and approximations, Part 2 (Russian) (Saratov, 1984), Saratov. Gos. Univ., Saratov, 1986, 17–21
170.
A. I. Aptekarev, V. A. Kalyagin, “Analytic properties of functions representable by $P^{(m)}$-fractions with periodic coefficients”, Akad. Nauk SSSR Inst. Prikl. Mat. Preprint, 1986, no. 57, 12
171.
A. I. Aptekarev, V. A. Kalyagin, “Asymptotic behavior of an $n$th degree root of polynomials of simultaneous orthogonality, and algebraic functions”, Akad. Nauk SSSR Inst. Prikl. Mat. Preprint, 1986, no. 60, 18
1985
172.
A. I. Aptekarev, “Analytic properties of functions represented by two-dimensional continued fractions with constant coefficients and their simultaneous Padé-Hermite approximants (type ${\rm II}$)”, Akad. Nauk SSSR Inst. Prikl. Mat. Preprint, 1985, no. 79, 12
1986
173.
A. I. Aptekarev, “Asymptotic properties of polynomials orthogonal on a system of contours, and periodic motions of Toda lattices”, Math. USSR-Sb., 53:1 (1986), 233–260
1984
174.
A. I. Aptekarev, E. M. Nikishin, “The scattering problem for a discrete Sturm–Liouville operator”, Math. USSR-Sb., 49:2 (1984), 325–355
1981
175.
A. I. Aptekarev, “On Padé approximations for the set $\{_{1}F_{1}(1,\,c;\,\lambda _{i}z)\}^{k}_{i=1}$”, Vestnik Moskov. Univ. Ser. I Mat. Mekh., 1981, no. 2, 58–62, 88
176.
A. I. Aptekarev, “Convergence of rational approximations to a set of exponential functions”, Vestnik Moskov. Univ. Ser. I Mat. Mekh., 1981, no. 1, 68–74, 108
1982
177.
A. I. Aptekarev, “Asymptotics of Hadamard determinants and the convergence of rows of Padé approximants for sums of exponentials”, Math. USSR-Sb., 41:4 (1982), 427–441
Ансамбли случайных матриц и совместно ортогональные многочлены A. I. Aptekarev XXII International Saratov Winter School
"Contemporary Problems of Function Theory and Their Applications",
dedicated to the 300th anniversary of the Russian Academy of Sciences January 28, 2024 12:00
Functional analogue of the Thue–Siegel–Roth theorem A. I. Aptekarev “Algebra, algebraic geometry, and number theory”. Memorial conference for academician Igor Rostislavovich Shafarevich June 6, 2022 16:50
Opening A. I. Aptekarev International Conference on Complex Analysis Dedicated to the Memory of Andrei Gonchar and Anatoliy Vitushkin October 11, 2021 10:50
Continuum limits of integrable systems Alexander Aptekarev School-Seminar "Interaction of Mathematics and Physics: New Perspectives" for graduate students and young researchers August 30, 2012 17:00
Complex analysis, mathematical physics, and applications, Collected papers, Trudy Mat. Inst. Steklova, 301, ed. A. I. Aptekarev, M. O. Katanaev, S. P. Suetin, 2018, 335 с. http://mi.mathnet.ru/book1696
Rational Approximation of Euler's Constant and Recurrence Relations, Collected papers, Sovrem. Probl. Mat., 9, ed. A. I. Aptekarev, 2007, 84 с. http://mi.mathnet.ru/book232
2025