BakuMathj

CONVEXITY OF OUT-CHEBYSHEV SETS

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Authors:  A. R. ALIMOV, N. A. ILYASOV

Keywords: Metrical exterior of a set, best approximation, out-Chebyshev set, preconvex set, convex set

DOI:  https://doi.org/10.32010/j.bmj.2025.16

 

MIXED PROBLEM FOR A NONLINEAR DIFFERENTIAL EQUATION OF THE SEVENTH ORDER WITH IDENTIFICATION SOURCE

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Authors: T. K. YULDASHEV, B. J. KADIRKULOV, M. M. BABAYEV

Keywords: Inverse mixed problem, redefinition function, seventh order differential equation, unique solvability, real parameter

DOI:  https://doi.org/10.32010/j.bmj.2025.15

 

WAVELET-BASED ESTIMATION OF LONG-MEMORY PARAMETER IN STOCHASTIC VOLATILITY MODELS USING A ROBUST LOG-PERIODOGRAM

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Authors: M. N’DAAM, T. A. KPANZOU, E. KATCHEKPELE

Keywords: Long-memory parameter estimation, wavelet-based methods, logperiodogram regression, simulation

DOI:  https://doi.org/10.32010/j.bmj.2025.14

 

GENERALIZED KURAMOTO-SIVASHINSKY EQUATION SOLVING BY B-SPLINES BASED NEURAL NETWORK

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Authors:  A. W. BELLO, J. ADETOLA, C. Z. J. MAMLANKOU, B. B. ADJALLA

Keywords: Kuramoto-Sivashinsky equation, VPINNs, B-splines, numerical analysis, nonlinear, variational methods, scientific computing

DOI:  https://doi.org/10.32010/j.bmj.2025.13

 

ON THE APPROXIMATION OF IDENTITY IN ADDITIVE-INVARIANT BANACH FUNCTION SPACES

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Authors: M. I. ISMAILOV, Ch. M. GASANOVA

Keywords: Korovkin theorem, Marcinkiewicz space, Steklov operator, approximation of identity

DOI:  https://doi.org/10.32010/j.bmj.2025.12

 

  1. APPROXIMATION OF THE AHLFORS-BEURLING TRANSFORM IN THE LEBESGUE SPACES
  2. ON THE USAGES OF GREEN’S FUNCTION ON TIME SCALES (3)
  3. APPLICATION OF THE FINITE INTEGRAL TRANSFORMATION METHOD TO THE SOLUTION OF MIXED PROBLEMS FOR ANTIPARABOLIC EQUATIONS
  4. BOUNDEDNESS OF THE DISCRETE AHLFORS-BEURLING TRANSFORM ON DISCRETE WEIGHTED LEBESGUE SPACES

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