Vol. 13 No. 2 (2021): Ufa Mathematical Journal 2021, volume 13 , issue 2

Article

• Alexey Borisovich Shabat and Ravil Islamovich Yamilov. Memories

  A.K. Yaikbaeva, S.I. Yamilova

  3-5

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• On integrability of $O(3)$–model

  A.B. Borisov

  3-7

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• On generalizations of Chebyshev polynomials and Catalan numbers

  B.S. Bychkov, G.B. Shabat

  8-14

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• On integrability of semi-discrete Tzitzeica equation

  R.N. Garifullin

  15-21

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• Integrals and characteristic Lie rings of semi-discrete systems of equations

  A.V. Zhiber, M.N. Kuznetsova

  22-32

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• General solutions of some linear equations with variable coefficients

  O.V. Kaptsov, M.M. Mirzaokhmedov

  33-40

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• Characteristic algebras and integrable exponential systems

  D.V. Millionshchikov, S.V. Smirnov

  41-69

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• Discrete Riemann-Hilbert problem and interpolation of entire functions

  V.Yu. Novokshenov

  70-80

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• Finite-gap solutions of nonlocal equations in Ablowitz-Kaup-Newell-Segur hierarchy

  A.O. Smirnov, V.B. Matveev

  81-98

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• Integrable Abel equation and asymptotics of symmetry solutions of Korteweg-de Vries equation

  B.I. Suleimanov, A.M. Shavlukov

  99-106

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• Differential substitutions for non-Abelian equations of KdV type

  V.E. Adler

  107-114

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• On mKdV equations related to Kac-Moody algebras $A_5^{(1)}$ and $A_5^{(2)}$

  V.S. Gerdjikov

  115-134

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• Generalized invariant manifolds for integrable equations and their applications

  I.T. Habibullin, A.R. Khakimova, A.O. Smirnov

  135-151

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• Yamilov's theorem for differential and difference equations

  Decio Levi, MiguelA. Rodríguez

  152-159

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• On Darboux non-integrability of Hietarinta equation

  S.Ya. Startsev

  160-169

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• On discretization of Darboux Integrable Systems admitting second-order integrals

  K. Zheltukhin, N. Zheltukhina

  170-186

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