Research Explorer

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Researcher

Niyaz Tokmagambetov

Awards & Distinctions

48 Results

2023

Inverse problems for evolutionary equations for positive operators

Daurenbek SerikbaevNiyaz TokmagambetovMichael Ruzhansky

2022

Cauchy type problems for fractional differential equations

Erkinjon KarimovMichael RuzhanskyNiyaz Tokmagambetov

A1 Journal Article in INTEGRAL TRANSFORMS AND SPECIAL FUNCTIONS

Direct and inverse problems for time-fractional pseudo-parabolic equations

Michael RuzhanskyDaurenbek SerikbaevNiyaz TokmagambetovBerikbol Torebek

A1 Journal Article in QUAESTIONES MATHEMATICAE

Fractional Klein-Gordon equation with singular mass. II: hypoelliptic case

Marianna ChatzakouMichael RuzhanskyNiyaz Tokmagambetov

A1 Journal Article in COMPLEX VARIABLES AND ELLIPTIC EQUATIONS

Fractional Schrödinger equations with singular potentials of higher order : II. hypoelliptic case

Marianna ChatzakouMichael RuzhanskyNiyaz Tokmagambetov

A1 Journal Article in REPORTS ON MATHEMATICAL PHYSICS

The heat equation with singular potentials : II. hypoelliptic case

Marianna ChatzakouMichael RuzhanskyNiyaz Tokmagambetov

A1 Journal Article in ACTA APPLICANDAE MATHEMATICAE

2021

Direct and inverse problems for time-fractional pseudo-parabolic equations

Michael RuzhanskyDaurenbek SerikbaevBerikbol TorebekNiyaz Tokmagambetov

U Journal Article in Quaestiones Mathematicae

Fractional Klein-Gordon equation with singular mass

Arshyn AltybayMichael RuzhanskyMohammed Elamine SebihNiyaz Tokmagambetov

A1 Journal Article in CHAOS SOLITONS & FRACTALS

Fractional Schrödinger equation with singular potentials of higher order

Arshyn AltybayMichael RuzhanskyMohammed Elamine SebihNiyaz Tokmagambetov

A1 Journal Article in REPORTS ON MATHEMATICAL PHYSICS

Sobolev, Hardy, Gagliardo-Nirenberg and Caffarelli-Kohn-Nirenberg type inequalities for some fractional derivatives

Aidyn KassymovMichael RuzhanskyNiyaz TokmagambetovBerikbol Torebek

A1 Journal Article in BANACH JOURNAL OF MATHEMATICAL ANALYSIS

The heat equation with strongly singular potentials

Arshyn AltybayMichael RuzhanskyMohammed Elamine SebihNiyaz Tokmagambetov

A1 Journal Article in APPLIED MATHEMATICS AND COMPUTATION

Well-posedness results for the wave equation generated by the Bessel operator

Bayan BekbolatNiyaz Tokmagambetov

A2 Journal Article in BULLETIN OF THE KARAGANDA UNIVERSITY-MATHEMATICS

2020

A parallel hybrid implementation of the 2D acoustic wave equation

Arshyn AltybayMichael RuzhanskyNiyaz Tokmagambetov

A1 Journal Article in INTERNATIONAL JOURNAL OF NONLINEAR SCIENCES AND NUMERICAL SIMULATION

Best constants in Sobolev and Gagliardo-Nirenberg inequalities on graded groups and ground states for higher order nonlinear subelliptic equations

Michael RuzhanskyNiyaz TokmagambetovNurgissa Yessirkegenov

A1 Journal Article in CALCULUS OF VARIATIONS AND PARTIAL DIFFERENTIAL EQUATIONS

Bitsadze-Samarskii type problem for the integro-differential diffusion-wave equation on the Heisenberg group

Michael RuzhanskyNiyaz TokmagambetovBerikbol Torebek

A1 Journal Article in INTEGRAL TRANSFORMS AND SPECIAL FUNCTIONS

Nonexistence results for the hyperbolic-type equations on graded Lie groups

Aidyn KassymovNiyaz TokmagambetovBerikbol Torebek

A1 Journal Article in BULLETIN OF THE MALAYSIAN MATHEMATICAL SCIENCES SOCIETY

On a non-local problem for a multi-term fractional diffusion-wave equation

Michael RuzhanskyNiyaz TokmagambetovBerikbol Torebek

A1 Journal Article in FRACTIONAL CALCULUS AND APPLIED ANALYSIS

2019

Acoustic and shallow water wave propagation with irregular dissipation

JC MuñozMichael RuzhanskyNiyaz Tokmagambetov

A1 Journal Article in FUNCTIONAL ANALYSIS AND ITS APPLICATIONS

An inverse problem for the pseudo-parabolic equation for a Sturm-Liouville operator

Daurenbek SerikbaevNiyaz Tokmagambetov

A2 Journal Article in NEWS OF THE NATIONAL ACADEMY OF SCIENCES OF THE REPUBLIC OF KAZAKHSTAN-SERIES PHYSICO-MATHEMATICAL

Blow-up of solutions of nonlinear heat equation with hypoelliptic operators on graded Lie groups

Bayan BekbolatAidyn KassymovNiyaz Tokmagambetov

A1 Journal Article in COMPLEX ANALYSIS AND OPERATOR THEORY

Fractional Sturm–Liouville equations : self-adjoint extensions

Niyaz TokmagambetovBerikbol Torebek

A1 Journal Article in COMPLEX ANALYSIS AND OPERATOR THEORY

Inverse source problems for positive operators, I : hypoelliptic diffusion and subdiffusion equations

Michael RuzhanskyNiyaz TokmagambetovBerikbol Torebek

A1 Journal Article in JOURNAL OF INVERSE AND ILL-POSED PROBLEMS

On nonlinear damped wave equations for positive operators, I : discrete spectrum

Michael RuzhanskyNiyaz Tokmagambetov

A1 Journal Article in DIFFERENTIAL AND INTEGRAL EQUATIONS

On the minimality of systems of root functions of the Laplace operator in the punctured domain

Bayan BekbolatD. B. NurakhmetovNiyaz TokmagambetovG. H. Aimal Rasa

A2 Journal Article in NEWS OF THE NATIONAL ACADEMY OF SCIENCES OF THE REPUBLIC OF KAZAKHSTAN-SERIES PHYSICO-MATHEMATICAL

To the question of a multipoint mixed boundary value problem for a wave equation

Bayan BekbolatB. KanguzhinNiyaz Tokmagambetov

A2 Journal Article in NEWS OF THE NATIONAL ACADEMY OF SCIENCES OF THE REPUBLIC OF KAZAKHSTAN-SERIES PHYSICO-MATHEMATICAL

Wave equation for 2D Landau Hamiltonian

Michael RuzhanskyNiyaz Tokmagambetov

A1 Journal Article in APPLIED AND COMPUTATIONAL MATHEMATICS

Wave equation with distributional propagation speed and mass term : numerical simulations

Arshyn AltybayMichael RuzhanskyNiyaz Tokmagambetov

A2 Journal Article in APPLIED MATHEMATICS E-NOTES

Wave propagation with irregular dissipation and applications to acoustic problems and shallow waters

Juan Carlos MuñozMichael RuzhanskyNiyaz Tokmagambetov

A1 Journal Article in JOURNAL DE MATHEMATIQUES PURES ET APPLIQUEES

2018

Anomalous diffusion phenomena with conservation law for the fractional kinetic process

Niyaz TokmagambetovBerikbol Torebek

A1 Journal Article in MATHEMATICAL METHODS IN THE APPLIED SCIENCES

Convolution, Fourier analysis, and distributions generated by Riesz bases

Michael RuzhanskyNiyaz Tokmagambetov

A1 Journal Article in MONATSHEFTE FUR MATHEMATIK

Green's formula for integro-differential operators

Niyaz TokmagambetovBerikbol Torebek

A1 Journal Article in JOURNAL OF MATHEMATICAL ANALYSIS AND APPLICATIONS

Nonlinear damped wave equations for the sub-Laplacian on the Heisenberg group and for Rockland operators on graded Lie groups

Michael RuzhanskyNiyaz Tokmagambetov

A1 Journal Article in JOURNAL OF DIFFERENTIAL EQUATIONS

On a very weak solution of the wave equation for a Hamiltonian in a singular electromagnetic field

Michael RuzhanskyNiyaz Tokmagambetov

A1 Journal Article in MATHEMATICAL NOTES

Well-posed problems for the fractional Laplace equation with integral boundary conditions

Niyaz TokmagambetovBerikbol Torebek

A1 Journal Article in ELECTRONIC JOURNAL OF DIFFERENTIAL EQUATIONS

Об очень слабом решении волнового уравнения для гамильтониана в сингулярном электромагнитном поле

Michael RuzhanskyNiyaz Tokmagambetov

A4 Journal Article in MATEMATIČESKIE ZAMETKI

2017

Schatten classes, nuclearity and nonharmonic analysis on compact manifolds with boundary

Julio DelgadoMichael RuzhanskyNiyaz Tokmagambetov

A1 Journal Article in JOURNAL DE MATHEMATIQUES PURES ET APPLIQUEES

2016

Fractional analogue of sturm-liouville operator

Niyaz TokmagambetovBerikbol Torebek

A1 Journal Article in DOCUMENTA MATHEMATICA

Resolvents of well-posed problems for finite-rank perturbations of the polyharmonic operator in a punctured domain

B. E. KanguzhinNiyaz Tokmagambetov

A1 Journal Article in SIBERIAN MATHEMATICAL JOURNAL

The Gellerstedt equation with integral perturbation in the Cauchy data

Niyaz Tokmagambetov

A2 Journal Article in JOURNAL OF MATHEMATICAL SCIENCES

2015

A regularized trace formula for a well-perturbed Laplace operator

B. E. KanguzhinNiyaz Tokmagambetov

A1 Journal Article in DOKLADY MATHEMATICS

Convolution, Fourier transform and Sobolev spaces generated by non-local Ionkin problem

Baltabek Esmatovich KanguzhinNiyaz Tokmagambetov

A2 Journal Article in UFA MATHEMATICAL JOURNAL

On regularized trace formulas for a well-posed perturbation of the m-Laplace operator

B. E. KanguzhinNiyaz Tokmagambetov

A1 Journal Article in DIFFERENTIAL EQUATIONS

On the well-posedness of boundary value problems with integral perturbation of boundary conditions

Niyaz TokmagambetovMichael Ruzhansky

Pseudo-differential operators generated by a non-local boundary value problem

Baltabek KanguzhinNiyaz TokmagambetovKanat Tulenov

A1 Journal Article in COMPLEX VARIABLES AND ELLIPTIC EQUATIONS

2014

Commutator inequalities associated with polar decompositions of τ-measurable operators

D. DauitbekNiyaz TokmagambetovK. S. Tulenov

A2 Journal Article in RUSSIAN MATHEMATICS

Laplace operator with δ-like potentials

B. E. KanguzhinD. B. NurakhmetovNiyaz Tokmagambetov

A2 Journal Article in RUSSIAN MATHEMATICS

2013

On a nonlocal boundary value problem for the multidimensional heat equation in a noncylindrical domain

T. Sh Kal'menovNiyaz Tokmagambetov

A1 Journal Article in SIBERIAN MATHEMATICAL JOURNAL

On transparent boundary conditions for the high–order heat equation

D. SuraganNiyaz Tokmagambetov

A2 Journal Article in SIBERIAN ELECTRONIC MATHEMATICAL REPORTS - SIBIRSKIE ELEKTRONNYE MATEMATICHESKIE IZVESTIYA