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Vol. 73 No. 3 (2021)

Published: 23.03.2021

Research articles

Almost everywhere convergence of Cesàro means of two variable Walsh – Fourier series with varying parameteres

A. A. Abu Joudeh , G. Gát

291 - 307
- pdf
The S-Jeribi essential spectrum

C. Belabbaci

308 - 313
- pdf
On solvability of one class of third order differential equations

B. T. Bilalov, M. I. Ismailov, Z. A. Kasumov

314 - 328
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On a class of $\lambda$ -modules

I. E. Wijayanti, M. Ardiyansyah, P. W. Prasetyo

329 - 334
- pdf
Bounded solutions of a second-order difference equation with jumps of operator coefficients

M. F. Horodnii , V. P. Kravets

335 - 340
- pdf (Ukrainian)
Approximation properties of solutions to multipoint boundary-value problems

A. A. Murach, O. B. Pelekhata, V. O. Soldatov

341 - 353
- pdf (Ukrainian)
Solutions of Sylvester equation in $C^*$ -modular operators

Z. Niazi Moghani, M. Mohammadzadeh Karizaki, M. Khanehgir

354 - 369
- pdf
Fractional diﬀusion equation degenerating on the initial hyperplane

A. M. Ponomarenko

370 - 380
- pdf (Ukrainian)
On the relations between some approaches to solving the Kirkwood – Salzburg equations

A. L. Rebenko

381 - 394
- pdf (Ukrainian)
Logarithmic asymptotics of the nonlinear Cauchy – Riemann – Beltrami equation

R. R. Salimov , M. V. Stefanchuk

395 - 407
- pdf (Ukrainian)
Differential and integral equations for Legendre – Laguerre based hybrid polynomials

S. Khan, M. Riyasat, Sh. A. Wani

408 - 424
- pdf

Short communications

Some applications of the open mapping theorem in locally convex cones

S. Jafarizad, A. Ranjbari

425 - 430
- pdf
On the strong law of large numbers for ϕ-sub-Gaussian random variables

K. Zajkowski

431 - 436
- pdf