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 Ordinary Differential Equations Positivity of the Cauchy matrix of a linear functional-differential equationL. M. Berezanskii, A. S. Larionov 1843 Finite-dimensional attractors in a model of turbulenceM. L. Blank 1854 Optimization of measurements in a problem on the estimation of the state of a dynamical system with geometric constraints on noiseM. I. Gusev 1862 Lyapunov irregular linear systems with a parameter multiplying the derivativeN. A. Izobov, E. K. Makarov 1870 Solution of a variational problem for dynamic potentialS. A. Laptev 1880 Moving singularities of solutions of a particular case of an Euler systemS. A. Myzgaeva, A. I. Yablonskii 1891 On the equation of an integral funnel and its applicationsA. I. Panasyuk 1894 On the finiteness of the number of limit cycles in a quadratic systemV. G. Romanovsky 1904 Optimal control of discontinuous dynamical systems with sliding statesM. I. Sumin 1911 Partial Differential Equations On the solvability of the problem of the thermochemistry of nonhomogeneous mediaA. G. Kolpakov 1923 Unique solvability of a plane stationary problem connected with the motion of a body submerged in a fluidN. G. Kuznetsov, V. G. Maz'ya 1928 Overdetermined problems for the wave equation and their nonlocal regularizationN. I. Popivanov 1941 The exterior Neumann problem for an elliptic equation that is degenerate at infinityJ. V. Rybalov 1955 The maximum principle for equations of mixed typeK. B. Sabitov 1967 Numerical methods Convergence of the spline collocation method on optimal grids for singularly perturbed boundary value problemsI. A. Blatov, V. V. Strygin 1977 Estimates for the rate of convergence of the difference approximation of the Dirichlet problem for the equation $-\Delta u+\sum_{|\alpha|\le1}(-1)^{|\alpha|}D^\alpha q_\alpha(x)u=f(x)$ for $q_\alpha(x)\in W_\infty^{\lambda|\alpha|}(\Omega)$, $\lambda\in(0,1]$S. A. Voitsekhovskii, V. L. Makarov, Yu. I. Rybak 1987 A numerical method for finding approximate solutions of parabolic variational inequalitiesV. I. Maksimov 1994 Short Communications Estimates of the solution of a half-space problem for a system of equations of mixed type in Hölder classesM. A. Abdrachmanov 2005 Stability of the solutions of nonlinear Lappo-Danilevskij systemsS. S. Belyavsky 2007 Estimates of exponents of exponential growth of solutions of some systemsL. D. Zamkobaya 2008 Boundaries of variation of the degree of polynomial solutions of algebraic differential equationsA. A. Krushelnitsky 2010 On the spectrum of a Bitsadze–Samarskiǐ problemB. V. Loginov, A. M. Nagornyi 2012 Conditions for the uniqueness of movable singular points of autonomous Hamiltonian systemsV. I. Matatov, S. N. Filippovich 2016