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Researcher
Niyaz Tokmagambetov
Profile
Projects
Publications
Activities
Awards & Distinctions
52
Results
2023
Inverse problems for evolutionary equations for positive operators
Daurenbek Serikbaev
Niyaz Tokmagambetov
Michael Ruzhansky
Dissertation
2023
2022
Cauchy type problems for fractional differential equations
Erkinjon Karimov
Michael Ruzhansky
Niyaz Tokmagambetov
A1
Journal Article
in
INTEGRAL TRANSFORMS AND SPECIAL FUNCTIONS
2022
Direct and inverse problems for time-fractional pseudo-parabolic equations
Michael Ruzhansky
Daurenbek Serikbaev
Niyaz Tokmagambetov
Berikbol Torebek
A1
Journal Article
in
QUAESTIONES MATHEMATICAE
2022
Fractional Klein-Gordon equation with singular mass. II: hypoelliptic case
Marianna Chatzakou
Michael Ruzhansky
Niyaz Tokmagambetov
A1
Journal Article
in
COMPLEX VARIABLES AND ELLIPTIC EQUATIONS
2022
Fractional Schrödinger equations with singular potentials of higher order : II. hypoelliptic case
Marianna Chatzakou
Michael Ruzhansky
Niyaz Tokmagambetov
A1
Journal Article
in
REPORTS ON MATHEMATICAL PHYSICS
2022
Multi-term time-fractional diffusion equation and system : mild solutions and critical exponents
Aidyn Kassymov
Niyaz Tokmagambetov
Berikbol Torebek
A1
Journal Article
in
PUBLICATIONES MATHEMATICAE-DEBRECEN
2022
The heat equation with singular potentials : II. hypoelliptic case
Marianna Chatzakou
Michael Ruzhansky
Niyaz Tokmagambetov
A1
Journal Article
in
ACTA APPLICANDAE MATHEMATICAE
2022
2021
Fractional Klein-Gordon equation with singular mass
Arshyn Altybay
Michael Ruzhansky
Mohammed Elamine Sebih
Niyaz Tokmagambetov
A1
Journal Article
in
CHAOS SOLITONS & FRACTALS
2021
Fractional Schrödinger equation with singular potentials of higher order
Arshyn Altybay
Michael Ruzhansky
Mohammed Elamine Sebih
Niyaz Tokmagambetov
A1
Journal Article
in
REPORTS ON MATHEMATICAL PHYSICS
2021
Sobolev, Hardy, Gagliardo-Nirenberg and Caffarelli-Kohn-Nirenberg type inequalities for some fractional derivatives
Aidyn Kassymov
Michael Ruzhansky
Niyaz Tokmagambetov
Berikbol Torebek
A1
Journal Article
in
BANACH JOURNAL OF MATHEMATICAL ANALYSIS
2021
The heat equation with strongly singular potentials
Arshyn Altybay
Michael Ruzhansky
Mohammed Elamine Sebih
Niyaz Tokmagambetov
A1
Journal Article
in
APPLIED MATHEMATICS AND COMPUTATION
2021
Well-posedness results for the wave equation generated by the Bessel operator
Bayan Bekbolat
Niyaz Tokmagambetov
A2
Journal Article
in
BULLETIN OF THE KARAGANDA UNIVERSITY-MATHEMATICS
2021
2020
A parallel hybrid implementation of the 2D acoustic wave equation
Arshyn Altybay
Michael Ruzhansky
Niyaz Tokmagambetov
A1
Journal Article
in
INTERNATIONAL JOURNAL OF NONLINEAR SCIENCES AND NUMERICAL SIMULATION
2020
A source inverse problem for the pseudo-parabolic equation with the fractional Sturm-Liouville operator
Daurenbek Serikbaev
Niyaz Tokmagambetov
A2
Journal Article
in
BULLETIN OF THE KARAGANDA UNIVERSITY-MATHEMATICS
2020
Best constants in Sobolev and Gagliardo-Nirenberg inequalities on graded groups and ground states for higher order nonlinear subelliptic equations
Michael Ruzhansky
Niyaz Tokmagambetov
Nurgissa Yessirkegenov
A1
Journal Article
in
CALCULUS OF VARIATIONS AND PARTIAL DIFFERENTIAL EQUATIONS
2020
Bitsadze-Samarskii type problem for the integro-differential diffusion-wave equation on the Heisenberg group
Michael Ruzhansky
Niyaz Tokmagambetov
Berikbol Torebek
A1
Journal Article
in
INTEGRAL TRANSFORMS AND SPECIAL FUNCTIONS
2020
Nonexistence results for the hyperbolic-type equations on graded Lie groups
Aidyn Kassymov
Niyaz Tokmagambetov
Berikbol Torebek
A1
Journal Article
in
BULLETIN OF THE MALAYSIAN MATHEMATICAL SCIENCES SOCIETY
2020
On a non-local problem for a multi-term fractional diffusion-wave equation
Michael Ruzhansky
Niyaz Tokmagambetov
Berikbol Torebek
A1
Journal Article
in
FRACTIONAL CALCULUS AND APPLIED ANALYSIS
2020
2019
Acoustic and shallow water wave propagation with irregular dissipation
JC Muñoz
Michael Ruzhansky
Niyaz Tokmagambetov
A1
Journal Article
in
FUNCTIONAL ANALYSIS AND ITS APPLICATIONS
2019
An inverse problem for the pseudo-parabolic equation for a Sturm-Liouville operator
Daurenbek Serikbaev
Niyaz Tokmagambetov
A2
Journal Article
in
NEWS OF THE NATIONAL ACADEMY OF SCIENCES OF THE REPUBLIC OF KAZAKHSTAN-SERIES PHYSICO-MATHEMATICAL
2019
Blow-up of solutions of nonlinear heat equation with hypoelliptic operators on graded Lie groups
Bayan Bekbolat
Aidyn Kassymov
Niyaz Tokmagambetov
A1
Journal Article
in
COMPLEX ANALYSIS AND OPERATOR THEORY
2019
Fractional Sturm–Liouville equations : self-adjoint extensions
Niyaz Tokmagambetov
Berikbol Torebek
A1
Journal Article
in
COMPLEX ANALYSIS AND OPERATOR THEORY
2019
Inverse source problems for positive operators, I : hypoelliptic diffusion and subdiffusion equations
Michael Ruzhansky
Niyaz Tokmagambetov
Berikbol Torebek
A1
Journal Article
in
JOURNAL OF INVERSE AND ILL-POSED PROBLEMS
2019
On nonlinear damped wave equations for positive operators, I : discrete spectrum
Michael Ruzhansky
Niyaz Tokmagambetov
A1
Journal Article
in
DIFFERENTIAL AND INTEGRAL EQUATIONS
2019
On the minimality of systems of root functions of the Laplace operator in the punctured domain
Bayan Bekbolat
D. B. Nurakhmetov
Niyaz Tokmagambetov
G. H. Aimal Rasa
A2
Journal Article
in
NEWS OF THE NATIONAL ACADEMY OF SCIENCES OF THE REPUBLIC OF KAZAKHSTAN-SERIES PHYSICO-MATHEMATICAL
2019
To the question of a multipoint mixed boundary value problem for a wave equation
Bayan Bekbolat
B. Kanguzhin
Niyaz Tokmagambetov
A2
Journal Article
in
NEWS OF THE NATIONAL ACADEMY OF SCIENCES OF THE REPUBLIC OF KAZAKHSTAN-SERIES PHYSICO-MATHEMATICAL
2019
Wave equation for 2D Landau Hamiltonian
Michael Ruzhansky
Niyaz Tokmagambetov
A1
Journal Article
in
APPLIED AND COMPUTATIONAL MATHEMATICS
2019
Wave equation with distributional propagation speed and mass term : numerical simulations
Arshyn Altybay
Michael Ruzhansky
Niyaz Tokmagambetov
A2
Journal Article
in
APPLIED MATHEMATICS E-NOTES
2019
Wave propagation with irregular dissipation and applications to acoustic problems and shallow waters
Juan Carlos Muñoz
Michael Ruzhansky
Niyaz Tokmagambetov
A1
Journal Article
in
JOURNAL DE MATHEMATIQUES PURES ET APPLIQUEES
2019
2018
Anomalous diffusion phenomena with conservation law for the fractional kinetic process
Niyaz Tokmagambetov
Berikbol Torebek
A1
Journal Article
in
MATHEMATICAL METHODS IN THE APPLIED SCIENCES
2018
Convolution, Fourier analysis, and distributions generated by Riesz bases
Michael Ruzhansky
Niyaz Tokmagambetov
A1
Journal Article
in
MONATSHEFTE FUR MATHEMATIK
2018
Green's formula for integro-differential operators
Niyaz Tokmagambetov
Berikbol Torebek
A1
Journal Article
in
JOURNAL OF MATHEMATICAL ANALYSIS AND APPLICATIONS
2018
Nonlinear damped wave equations for the sub-Laplacian on the Heisenberg group and for Rockland operators on graded Lie groups
Michael Ruzhansky
Niyaz Tokmagambetov
A1
Journal Article
in
JOURNAL OF DIFFERENTIAL EQUATIONS
2018
On a very weak solution of the wave equation for a Hamiltonian in a singular electromagnetic field
Michael Ruzhansky
Niyaz Tokmagambetov
A1
Journal Article
in
MATHEMATICAL NOTES
2018
Symmetric differential operators of fractional order and their extensions
Niyaz Tokmagambetov
Berikbol Torebek
A2
Journal Article
in
TRANSACTIONS OF THE MOSCOW MATHEMATICAL SOCIETY
2018
Well-posed problems for the fractional Laplace equation with integral boundary conditions
Niyaz Tokmagambetov
Berikbol Torebek
A1
Journal Article
in
ELECTRONIC JOURNAL OF DIFFERENTIAL EQUATIONS
2018
Об очень слабом решении волнового уравнения для гамильтониана в сингулярном электромагнитном поле
Michael Ruzhansky
Niyaz Tokmagambetov
A4
Journal Article
in
MATEMATIČESKIE ZAMETKI
2018
2017
Remark on a regularized trace formula for m-Laplacian in a punctured domain
Gulzat Nalzhupbayeva
Niyaz Tokmagambetov
C1
Conference
2017
Schatten classes, nuclearity and nonharmonic analysis on compact manifolds with boundary
Julio Delgado
Michael Ruzhansky
Niyaz Tokmagambetov
A1
Journal Article
in
JOURNAL DE MATHEMATIQUES PURES ET APPLIQUEES
2017
2016
Fractional analogue of sturm-liouville operator
Niyaz Tokmagambetov
Berikbol Torebek
A1
Journal Article
in
DOCUMENTA MATHEMATICA
2016
Resolvents of well-posed problems for finite-rank perturbations of the polyharmonic operator in a punctured domain
B. E. Kanguzhin
Niyaz Tokmagambetov
A1
Journal Article
in
SIBERIAN MATHEMATICAL JOURNAL
2016
The Gellerstedt equation with integral perturbation in the Cauchy data
Niyaz Tokmagambetov
A2
Journal Article
in
JOURNAL OF MATHEMATICAL SCIENCES
2016
2015
A regularized trace formula for a well-perturbed Laplace operator
B. E. Kanguzhin
Niyaz Tokmagambetov
A1
Journal Article
in
DOKLADY MATHEMATICS
2015
Convolution, Fourier transform and Sobolev spaces generated by non-local Ionkin problem
Baltabek Esmatovich Kanguzhin
Niyaz Tokmagambetov
A2
Journal Article
in
UFA MATHEMATICAL JOURNAL
2015
On regularized trace formulas for a well-posed perturbation of the m-Laplace operator
B. E. Kanguzhin
Niyaz Tokmagambetov
A1
Journal Article
in
DIFFERENTIAL EQUATIONS
2015
On the well-posedness of boundary value problems with integral perturbation of boundary conditions
Niyaz Tokmagambetov
Michael Ruzhansky
Dissertation
2015
Pseudo-differential operators generated by a non-local boundary value problem
Baltabek Kanguzhin
Niyaz Tokmagambetov
Kanat Tulenov
A1
Journal Article
in
COMPLEX VARIABLES AND ELLIPTIC EQUATIONS
2015
2014
Commutator inequalities associated with polar decompositions of τ-measurable operators
D. Dauitbek
Niyaz Tokmagambetov
K. S. Tulenov
A2
Journal Article
in
RUSSIAN MATHEMATICS
2014
Laplace operator with δ-like potentials
B. E. Kanguzhin
D. B. Nurakhmetov
Niyaz Tokmagambetov
A2
Journal Article
in
RUSSIAN MATHEMATICS
2014
The fourier transform and convolutions generated by a differential operator with boundary condition on a segment
Baltabek Kanguzhin
Niyaz Tokmagambetov
Bookchapter
in
Fourier analysis : pseudo-differential operators, time-frequency analysis and partial differential equations
2014
2013
On a nonlocal boundary value problem for the multidimensional heat equation in a noncylindrical domain
T. Sh Kal'menov
Niyaz Tokmagambetov
A1
Journal Article
in
SIBERIAN MATHEMATICAL JOURNAL
2013
On transparent boundary conditions for the high–order heat equation
D. Suragan
Niyaz Tokmagambetov
A2
Journal Article
in
SIBERIAN ELECTRONIC MATHEMATICAL REPORTS - SIBIRSKIE ELEKTRONNYE MATEMATICHESKIE IZVESTIYA
2013