activity
20162026
most citedExistence and non-existence of global solutions for semilinear heat equations and inequalities on sub-Riemannian manifolds, and Fujita exponent on unimodular Lie groups

33 citations · 69 across the 21 of their papers we have counts for

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15 papers · 1 filter

math.FA2026

Sharp forms and quantitative stability for general weighted discrete -Hardy inequalities

Nurgissa Yessirkegenov, Amir Zhangirbayev

In this paper, we provide a sharp remainder term for the general weighted discrete -Hardy inequality. By choosing appropriate weights and specifying , we are able to…

math.FA2025

Refined general weighted -Hardy and Caffarelli-Kohn-Nirenberg type inequalities and identities related to the Baouendi-Grushin operator

Nurgissa Yessirkegenov, Amir Zhangirbayev

In this paper, we present a sufficient condition on a pair of nonnegative weights and such that we have a general weighted -Hardy type identity. The result, for a ce…

math.FA2023

Unified weighted Hardy-type inequalities

Durvudkhan Suragan, Nurgissa Yessirkegenov

We present a unified approach to obtain Hardy-type inequalities in the context of nilpotent Lie groups with sharp constants. The unified methodology employed herein allows for expl…

math.FA2018★ 4 cited

Hardy-Sobolev-Rellich, Hardy-Littlewood-Sobolev and Caffarelli-Kohn-Nirenberg inequalities on general Lie groups

Michael Ruzhansky, Nurgissa Yessirkegenov

In this paper we establish a number of geometrical inequalities such as Hardy, Sobolev, Rellich, Hardy-Littlewood-Sobolev, Caffarelli-Kohn-Nirenberg, Gagliardo-Nirenberg inequaliti…

math.FA2018

Euler semigroup, Hardy-Sobolev and Gagliardo-Nirenberg type inequalities on homogeneous groups

Michael Ruzhansky, Durvudkhan Suragan, Nurgissa Yessirkegenov

In this paper we describe the Euler semigroup on homogeneous Lie groups, which allows us to obtain various types of the Hardy-Sobolev and…

math.FA2018★ 2 cited

Hypoelliptic functional inequalities

Michael Ruzhansky, Nurgissa Yessirkegenov

In this paper we derive a variety of functional inequalities for general homogeneous invariant hypoelliptic differential operators on nilpotent Lie groups. The obtained inequalitie…

math.FA2018★ 2 cited

Hardy, weighted Trudinger-Moser and Caffarelli-Kohn-Nirenberg type inequalities on Riemannian manifolds with negative curvature

Michael Ruzhansky, Nurgissa Yessirkegenov

In this paper we obtain Hardy, weighted Trudinger-Moser and Caffarelli-Kohn-Nirenberg type inequalities with sharp constants on Riemannian manifolds with non-positive sectional cur…

math.FA2017

Critical Gagliardo-Nirenberg, Trudinger, Brezis-Gallouet-Wainger inequalities on graded groups and ground states

Michael Ruzhansky, Nurgissa Yessirkegenov

In this paper we investigate critical Gagliardo-Nirenberg, Trudinger-type and Brezis-Gallouet-Wainger inequalities associated with the positive Rockland operators on graded Lie gro…

math.FA2017★ 23 cited

Caffarelli-Kohn-Nirenberg and Sobolev type inequalities on stratified Lie groups

Michael Ruzhansky, Durvudkhan Suragan, Nurgissa Yessirkegenov

In this short paper, we establish a range of Caffarelli-Kohn-Nirenberg and weighted -Sobolev type inequalities on stratified Lie groups. All inequalities are obtained with s…

math.FA2017

Rellich inequalities for sub-Laplacians with drift

Michael Ruzhansky, Nurgissa Yessirkegenov

In this note we prove horizontal weighted Rellich inequalities for the sub-Laplacian and for sub-Laplacians with drift on general stratified groups. We show how the presence of a d…

math.FA2017

Factorizations and Hardy-Rellich inequalities on stratified groups

Michael Ruzhansky, Nurgissa Yessirkegenov

In this paper, we obtain Hardy, Hardy-Rellich and refined Hardy inequalities on general stratified groups and weighted Hardy inequalities on general homogeneous groups using the fa…

math.FA2017

Hardy inequalities for Landau Hamiltonian and for Baouendi-Grushin operator with Aharonov-Bohm type magnetic field. Part I

Ari Laptev, Michael Ruzhansky, Nurgissa Yessirkegenov

In this paper we prove the Hardy inequalities for the quadratic form of the Laplacian with the Landau Hamiltonian magnetic field. Moreover, we obtain Poincaré type inequality and i…

math.FA2017★ 4 cited

Extended Caffarelli-Kohn-Nirenberg inequalities, and remainders, stability, and superweights for -weighted Hardy inequalities

Michael Ruzhansky, Durvudkhan Suragan, Nurgissa Yessirkegenov

In this paper we give an extension of the classical Caffarelli-Kohn-Nirenberg inequalities: we show that for , with , $δ\in[0,1]\cap\left[\fra…

math.FA2017★ 1 cited

Hardy-Littlewood, Bessel-Riesz, and fractional integral operators in anisotropic Morrey and Campanato spaces

Michael Ruzhansky, Durvudkhan Suragan, Nurgissa Yessirkegenov

We analyse Morrey spaces, generalised Morrey spaces and Campanato spaces on homogeneous groups. The boundedness of the Hardy-Littlewood maximal operator, Bessel-Riesz operators, ge…

math.FA2016

Sobolev type inequalities, Euler-Hilbert-Sobolev and Sobolev-Lorentz-Zygmund spaces on homogeneous groups

Michael Ruzhansky, Durvudkhan Suragan, Nurgissa Yessirkegenov

We define Euler-Hilbert-Sobolev spaces and obtain embedding results on homogeneous groups using Euler operators, which are homogeneous differential operators of order zero. Sharp r…