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Shirokov Nikolai Alekseevich

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Total publications: 80
Scientific articles: 75
Presentations: 11

Number of views:
This page:2124
Abstract pages:9039
Full texts:3065
References:621
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https://mathscinet.ams.org/mathscinet/MRAuthorID/190219

Publications in Math-Net.Ru
1. About sharpness of the estimate in a theorem concerning half smoothness of a function holomorphic in a ball
N. A. Shirokov
Zap. Nauchn. Sem. POMI, 467 (2018),  244–254
2. A note about approximation by trigonometric polynomials
N. A. Shirokov
Zap. Nauchn. Sem. POMI, 467 (2018),  238–243
3. Interpolation in a Bernstein space by means of approximation
N. A. Shirokov
Zap. Nauchn. Sem. POMI, 467 (2018),  215–237
4. Smoothness of a holomorphic function and its modulus on the boundary of a polydisk
N. A. Shirokov
Zap. Nauchn. Sem. POMI, 456 (2017),  172–176
5. Means of the power $-2$ of derivatives in the class $S$
N. A. Shirokov
Algebra i Analiz, 28:6 (2016),  189–207
6. Smoothness of a holomorphic function in a ball and smoothness of its modulus on the sphere
N. A. Shirokov
Zap. Nauchn. Sem. POMI, 447 (2016),  123–128
7. Smoothness of a conformal mapping on a subset of the boundary
N. A. Shirokov
Algebra i Analiz, 27:5 (2015),  195–206
8. Sufficient condition for Hölder smoothness of a function
N. A. Shirokov
Algebra i Analiz, 25:3 (2013),  200–206
9. A series of operators in $L^2(\mathbb C)$ proportional to unitary ones
N. A. Shirokov
Zap. Nauchn. Sem. POMI, 416 (2013),  188–201
10. Keldysh–Lavrentiev counterexample and means of powers of conformal mapping. 1. Construction of a mapping
H. Hedenmalm, N. A. Shirokov
Zap. Nauchn. Sem. POMI, 389 (2011),  252–256
11. Approximation by entire functions on subsets of a ray
O. V. Sil'vanovich, N. A. Shirokov
Zap. Nauchn. Sem. POMI, 337 (2006),  233–237
12. Uniform polynomial approximations on convex domains in $\mathbb C^n$
N. A. Shirokov
Zap. Nauchn. Sem. POMI, 333 (2006),  98–112
13. On the decay rate of $(p,A)$-lacunary series
F. L. Nazarov, N. A. Shirokov
Zap. Nauchn. Sem. POMI, 327 (2005),  135–149
14. Remark about the maximum of the modulus of an analytic function on the boundary
N. A. Shirokov
Zap. Nauchn. Sem. POMI, 315 (2004),  149–154
15. A converse approximation theorem on subsets of elliptic curves
A. V. Khaustov, N. A. Shirokov
Zap. Nauchn. Sem. POMI, 314 (2004),  257–271
16. Zero-sets for $H^\infty$-functions on hyperplanes in $\mathbb B^n$
N. A. Shirokov
Zap. Nauchn. Sem. POMI, 303 (2003),  272–278
17. Polynomial approximations on closed subsets of elliptic curves
A. V. Khaustov, N. A. Shirokov
Zap. Nauchn. Sem. POMI, 302 (2003),  178–187
18. Inverse approximation theorem on an infinite union of segments
N. A. Shirokov
Zap. Nauchn. Sem. POMI, 290 (2002),  168–176
19. Hölder classes in Lavrent'ev domians
N. A. Shirokov
Zap. Nauchn. Sem. POMI, 282 (2001),  256–275
20. An example of a fast decaying $(p,A)$-lacunary function
N. A. Shirokov
Zap. Nauchn. Sem. POMI, 270 (2000),  350–363
21. Polynomial approximation in the $L^p$-metric on disjoint segments
N. Yu. Krasheninnikova, N. A. Shirokov
Zap. Nauchn. Sem. POMI, 270 (2000),  175–200
22. On an extremal problem in the Wiener algebra
I. V. Videnskii, N. A. Shirokov
Algebra i Analiz, 11:6 (1999),  122–138
23. A class of functions on a disjoint collection of segments
K. G. Mezhevitch, N. A. Shirokov
Zap. Nauchn. Sem. POMI, 262 (1999),  172–184
24. Approximation of functions belonging to the Hölder class on a half-axis
T. S. Davydova, N. A. Shirokov
Zap. Nauchn. Sem. POMI, 262 (1999),  127–137
25. Interpolation in a neighborhood of a cusp point
A. M. Kotochigov, N. A. Shirokov
Algebra i Analiz, 10:4 (1998),  142–176
26. Approximation by polynomials on compacta with infinitely connected complement
N. A. Shirokov
Algebra i Analiz, 10:1 (1998),  248–264
27. A variational formula for Bergman kernels
N. A. Shirokov
Zap. Nauchn. Sem. POMI, 255 (1998),  221–243
28. Constructive descriptions of classes of functions with the help of polynomial approximations. II
N. A. Shirokov
Zap. Nauchn. Sem. POMI, 254 (1998),  235–243
29. Constructive descriptions of classes of functions with the help of polynomial approximations. I
N. A. Shirokov
Zap. Nauchn. Sem. POMI, 254 (1998),  207–234
30. Concerning an analog of the Stolz angle for the unit ball in $\mathbb C^n$
N. A. Shirokov
Zap. Nauchn. Sem. POMI, 247 (1997),  276–297
31. Inner functions in O. V. Besov's analytic classes
N. A. Shirokov
Algebra i Analiz, 8:4 (1996),  193–221
32. Approximation on limit compacta of Kleinian groups
N. A. Shirokov
Zap. Nauchn. Sem. POMI, 232 (1996),  199–212
33. Estimates of the Bergman kernel for some pseudoconvex domains
N. A. Shirokov
Zap. Nauchn. Sem. POMI, 222 (1995),  222–245
34. Polynomial $D$-approximations that exponentially decrease strictly inside a continuum
N. A. Shirokov
Algebra i Analiz, 6:6 (1994),  154–184
35. Outer functions from the analytic О. V. Besov classes
N. A. Shirokov
Zap. Nauchn. Sem. POMI, 217 (1994),  172–217
36. A direct theorem for strictly convex domains in $\mathbb C^n$
N. A. Shirokov
Zap. Nauchn. Sem. POMI, 206 (1993),  151–173
37. Approximation on the limit continuous of a degenerate Kleinian group
N. A. Shirokov
Zap. Nauchn. Sem. POMI, 206 (1993),  137–150
38. One a type of automorphic forms
N. A. Shirokov
Zap. Nauchn. Sem. POMI, 201 (1992),  177–189
39. Some consequences of the Lindelöf conjecture
N. A. Shirokov
Zap. Nauchn. Sem. POMI, 201 (1992),  164–176
40. The Bergman kernel near the diagonal for domains close to ellipsoids
N. A. Shirokov
Zap. Nauchn. Sem. LOMI, 190 (1991),  163–172
41. Fuchsian groups with carleson limit sets
N. A. Shirokov
Funktsional. Anal. i Prilozhen., 24:4 (1990),  92–93
42. She quantitative version of the Kado theorem
N. A. Shirokov
Zap. Nauchn. Sem. LOMI, 157 (1987),  103–112
43. A note on Puchsian groups
N. A. Shirokov
Zap. Nauchn. Sem. LOMI, 149 (1986),  181–185
44. A note on a theorem of V. V. Andrievskii
N. A. Shirokov
Zap. Nauchn. Sem. LOMI, 149 (1986),  177–180
45. Traces of functions from $H^{\infty}(\mathbb B^n)$ on certain sets of hyperplanes
N. A. Shirokov
Zap. Nauchn. Sem. LOMI, 141 (1985),  183–191
46. A constructive description of Hölder classes on closed Jordan curves
N. A. Shirokov
Zap. Nauchn. Sem. LOMI, 141 (1985),  72–99
47. On a theorem of A. G. Vitushkin
N. A. Shirokov
Zap. Nauchn. Sem. LOMI, 135 (1984),  178–181
48. The Hevanlinna factorization in some classes of analytical functions
N. A. Shirokov
Zap. Nauchn. Sem. LOMI, 126 (1983),  205–207
49. Closed ideals of algebras of type $B_{p,q}^\alpha$
N. A. Shirokov
Izv. Akad. Nauk SSSR Ser. Mat., 46:6 (1982),  1316–1332
50. Some properties of weakly lacunary power series
N. A. Shirokov
Uspekhi Mat. Nauk, 37:2(224) (1982),  249–250
51. Free interpolation in the spaces $ C^A_{r,\omega}$
N. A. Shirokov
Mat. Sb. (N.S.), 117(159):3 (1982),  337–358
52. Zero sets for functions from $\Lambda_\omega$
N. A. Shirokov
Zap. Nauchn. Sem. LOMI, 107 (1982),  178–188
53. Modulus of boundary values of analytic functions of class $\Lambda^n_\omega$
N. A. Shirokov
Zap. Nauchn. Sem. LOMI, 113 (1981),  258–260
54. Sets of zeros of analytic functions from the space $B_{p,1}^{1/p}$ are carlesonian
N. A. Shirokov
Zap. Nauchn. Sem. LOMI, 113 (1981),  253–257
55. Standard ideals of algebra $H_n^1$
N. A. Shirokov
Funktsional. Anal. i Prilozhen., 13:1 (1979),  86–87
56. A constructive description of spaces of functions analytic in a multiconnected domain and continuous in its closure
N. A. Shirokov
Zap. Nauchn. Sem. LOMI, 92 (1979),  314–316
57. A remark concerning a problem of S. M. Nikolskii
N. A. Shirokov
Zap. Nauchn. Sem. LOMI, 92 (1979),  312–313
58. Approximative properties of a continuum
N. A. Shirokov
Zap. Nauchn. Sem. LOMI, 92 (1979),  241–252
59. Ideals and factorization in algebras of analytic functions that are smooth up to the boundary
N. A. Shirokov
Trudy Mat. Inst. Steklov., 130 (1978),  196–222
60. 5.11. On the traces of $H^\infty(\mathbb B^N)$ functions on the hyperplanes
N. A. Shirokov
Zap. Nauchn. Sem. LOMI, 81 (1978),  264–265
61. Approximate entropy of continua
N. A. Shirokov
Dokl. Akad. Nauk SSSR, 235:3 (1977),  546–549
62. Approximation of continuous analytic functions in domains with bounded boundary rotation
N. A. Shirokov
Dokl. Akad. Nauk SSSR, 228:4 (1976),  809–812
63. Uniform approximation of analytic functions by polynomials in domains of bounded boundary rotation without zero angles
N. A. Shirokov
Zap. Nauchn. Sem. LOMI, 65 (1976),  199–202
64. Some embedding theorem for spaces of harmonic functions
N. A. Shirokov
Zap. Nauchn. Sem. LOMI, 56 (1976),  191–194
65. On a constructive characterization of analytic continuous functions in close-to-convex domains
N. A. Shirokov
Dokl. Akad. Nauk SSSR, 221:4 (1975),  790–793
66. On weighted approximations on closed sets with corners
N. A. Shirokov
Dokl. Akad. Nauk SSSR, 214:2 (1974),  295–297
67. On a generalization of Ahlfors' theorem
N. A. Shirokov
Zap. Nauchn. Sem. LOMI, 44 (1974),  179–185
68. A rejmark to a theorem of V. P. Gurarii
S. V. Khrushchev, N. A. Shirokov
Zap. Nauchn. Sem. LOMI, 39 (1974),  196–197
69. Borne generalization of the Littlewood Paley theorem
N. A. Shirokov
Zap. Nauchn. Sem. LOMI, 39 (1974),  162–175
70. Some properties of primary ideals of absolutely convergent Taylor series and Fourier integrals
N. A. Shirokov
Zap. Nauchn. Sem. LOMI, 39 (1974),  149–161
71. On uniform approximation of functions on closed sets having a finite number of corner points with nonzero exterior angles
N. A. Shirokov
Dokl. Akad. Nauk SSSR, 205:4 (1972),  798–800
72. Обобщение теоремы Литтлвуда–Пэли
N. A. Shirokov
Zap. Nauchn. Sem. LOMI, 30 (1972),  179–180
73. Zeros of analytic functions with a derivative in $H^1$
S. A. Vinogradov, N. A. Shirokov
Zap. Nauchn. Sem. LOMI, 30 (1972),  154–157
74. On Hayman's regularity theorem
N. A. Shirokov
Zap. Nauchn. Sem. LOMI, 24 (1972),  182–200
75. On the factorization of analytic functions with the derivative in $H^p$
S. A. Vinogradov, N. A. Shirokov
Zap. Nauchn. Sem. LOMI, 22 (1971),  8–27

76. Odinets Vladimir Petrovich (on his 65th birthday)
A. M. Vershik, O. Ya. Viro, V. N. Isakov, G. A. Leonov, M. J. Pratussevitch, V. P. Havin, N. A. Shirokov
Vladikavkaz. Mat. Zh., 12:4 (2010),  79–81
77. Garal'd Isidorovich Natanson (obituary)
V. M. Babich, A. M. Vershik, V. S. Videnskii, O. L. Vinogradov, I. K. Daugavet, N. Yu. Dodonov, V. V. Zhuk, B. M. Makarov, A. N. Podkorutov, Yu. G. Reshetnyak, M. A. Skopina, V. L. Fainshmidt, V. P. Havin, N. A. Shirokov
Uspekhi Mat. Nauk, 59:4(358) (2004),  181–185
78. Nikolai Andreevich Lebedev and the Leningrad school of function theory in the 1950–1970s
E. G. Goluzina, V. V. Zhuk, G. V. Kuz'mina, N. A. Shirokov
Zap. Nauchn. Sem. POMI, 276 (2001),  5–19
79. Isaak Moiseevich Milin (obituary)
I. A. Aleksandrov, Yu. E. Alenitsin, V. I. Belyi, V. V. Goryainov, A. Z. Grinshpan, V. Ya. Gutlyanskii, S. L. Krushkal', N. M. Matveev, V. I. Milin, I. P. Mityuk, S. V. Nikitin, W. P. Odinets, Yu. G. Reshetnyak, P. M. Tamrazov, N. A. Shirokov
Uspekhi Mat. Nauk, 48:4(292) (1993),  167–168
80. Nikolai Andreevich Lebedev (obituary)
I. A. Aleksandrov, I. E. Bazilevich, G. V. Kuz'mina, S. M. Lozinskii, P. M. Tamrazov, N. A. Shirokov
Uspekhi Mat. Nauk, 38:2(230) (1983),  195–199

Presentations in Math-Net.Ru
1. Конструктивное описание классов Гёльдера на дуге в $R^3$
N. A. Shirokov
Seminar on Operator Theory and Function Theory
September 17, 2018 17:30
2. О приближении тригонометрическими полиномами
N. A. Shirokov
Seminar on Operator Theory and Function Theory
March 5, 2018 17:30
3. Приближение гельдеровских функций на счетном объединении отрезков целыми функциями
N. A. Shirokov
Seminar on Operator Theory and Function Theory
October 31, 2016 17:30
4. Половина гладкости у внешней функции по сравнению с ее модулем в единичном шаре в $\mathbb C^n$
N. A. Shirokov
Seminar on Operator Theory and Function Theory
March 28, 2016 17:30
5. Averages of degree $-2$ of derivatives of conformal mappings
N. A. Shirokov
Traditional winter session MIAN–POMI devoted to the topic "Complex analysis"
December 22, 2015 11:00   
6. Гладкость конформного отображения на подмножестве границы
N. A. Shirokov
Seminar on Operator Theory and Function Theory
September 15, 2014 17:30
7. Факторизационное представление и описание корневых множеств одного класса функций, аналитических в круге (по работе Е.Г Родиковой)
N. A. Shirokov
Seminar on Operator Theory and Function Theory
March 24, 2014 17:30
8. Коммутаторы Кальдерона в $L^2(\mathbb C)$, пропорциональные унитарным
N. A. Shirokov
Seminar on Operator Theory and Function Theory
April 15, 2013 17:30
9. Достаточные условия гёльдеровости внешней функции
N. A. Shirokov
Seminar on Operator Theory and Function Theory
February 18, 2013 17:30
10. Об оценках длин лемнискат (по работе Ф. Назарова и А. Фрынтова “New estimates for the length of the Erdős–Herzog–Piranian lemniscate”)
N. A. Shirokov
Seminar on Operator Theory and Function Theory
October 3, 2011 17:30
11. Обобщение теоремы Гандерсена–Хеймана (по работе К.М.Дьяконова)
N. A. Shirokov
Seminar on Operator Theory and Function Theory
February 21, 2011 17:30

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