BakuMathj

ON b−REPDIGITS WHICH ARE SUMS OF THREE NARAYANA NUMBERS WITH A CONSEQUENCE

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Authors: P. TIEBEKABE, S. DIOUF, S. NIKIEMA

Keywords: Narayana’s cows sequence, b-repdigits, diophantine equations, Mersenne primes, lower bounds, logarithms, Baker-Davenport reduction method, recurrence relations

DOI:  https://doi.org/10.32010/j.bmj.2025.19

 

ON THE EXISTENCE OF SOLUTIONS FOR PERTURBED IMPULSIVE DIFFERENTIAL EQUATIONS WITH INITIAL TIME DIFFERENCES

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Authors: S. DEMİRBÜKEN, C. YAKAR

Keywords: Existence, initial time difference, impulsive differential equation

DOI:  https://doi.org/10.32010/j.bmj.2025.18

 

ON ONE PROBLEM OF FEEDBACK CONTROL OF A HEATING SYSTEM

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Authors: V. M. ABDULLAYEV

Keywords: Optimal control, feedback, loaded differential equation

DOI:  https://doi.org/10.32010/j.bmj.2025.17

 

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

 

  1. WAVELET-BASED ESTIMATION OF LONG-MEMORY PARAMETER IN STOCHASTIC VOLATILITY MODELS USING A ROBUST LOG-PERIODOGRAM
  2. GENERALIZED KURAMOTO-SIVASHINSKY EQUATION SOLVING BY B-SPLINES BASED NEURAL NETWORK
  3. ON THE APPROXIMATION OF IDENTITY IN ADDITIVE-INVARIANT BANACH FUNCTION SPACES
  4. APPROXIMATION OF THE AHLFORS-BEURLING TRANSFORM IN THE LEBESGUE SPACES

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