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Estimates of singular numbers (s-numbers) for a class of degenerate elliptic operators [PDF]

open access: yesҚарағанды университетінің хабаршысы. Математика сериясы, 2022
In this paper we study a class of degenerate elliptic equations with an arbitrary power degeneracy on the line. Based on the research carried out in the course of the work, the authors propose methods to overcome various difficulties associated with the
S.Zh. Igisinov   +3 more
doaj   +2 more sources

Forcing the system by a drift

open access: yesМатематичні Студії, 2021
We establish apriori estimate for the solutions of a degenerate non-divergence nonlinear elliptic equation. For this goal we study forcing the system by a drift.
S. Aliev   +3 more
doaj   +1 more source

W-Shaped Bright Soliton of the (2 + 1)-Dimension Nonlinear Electrical Transmission Line

open access: yesMathematics, 2023
In this paper, we investigate solitary wave solutions of the nonlinear electrical transmission line by using the Jacobi elliptic function and the auxiliary equation methods.
Mustafa Inc   +2 more
doaj   +1 more source

Properties of solutions to some weighted p-Laplacian equation [PDF]

open access: yesOpuscula Mathematica, 2020
In this paper, we prove some qualitative properties for the positive solutions to some degenerate elliptic equation given by \[-\text{div}\big(w|\nabla u|^{p-2}\nabla u\big)=f(x,u),\quad w\in \mathcal{A}_p,\] on smooth domain and for varying nonlinearity
Prashanta Garain
doaj   +1 more source

An oscillation theorem for the nonlinear degenerate elliptic equation in the Heisenberg group

open access: yesBoundary Value Problems, 2021
The aim of this paper is to study the oscillation of solutions of the nonlinear degenerate elliptic equation in the Heisenberg group H n $H^{n}$ . We first derive a critical inequality in H n $H^{n}$ . Based on it, we establish a Picone-type differential
Duan Wu, Pengcheng Niu
doaj   +1 more source

Exact meromorphic stationary solutions of the real cubic Swift-Hohenberg equation [PDF]

open access: yes, 2012
We show that all meromorphic solutions of the stationary reduction of the real cubic Swift-Hohenberg equation are elliptic or degenerate elliptic. We then obtain them all explicitly by the subequation method, and one of them appears to be a new elliptic ...
Berg   +28 more
core   +2 more sources

Interior Regularity Estimates for a Degenerate Elliptic Equation with Mixed Boundary Conditions

open access: yesAxioms, 2018
The Marchaud fractional derivative can be obtained as a Dirichlet-to–Neumann map via an extension problem to the upper half space. In this paper we prove interior Schauder regularity estimates for a degenerate elliptic equation with mixed Dirichlet ...
Jean-Daniel Djida, Arran Fernandez
doaj   +1 more source

Numerical Experiments of the Dual Null Field Method for Dirichlet Problems of Laplace’s Equation in Elliptic Domains with Elliptic Holes

open access: yesИзвестия Иркутского государственного университета: Серия "Математика", 2022
Dual techniques have been used in many engineering papers to deal with singularity and ill-conditioning of the boundary element method (BEM). In the first part of the two-part article, our efforts were focused on studying the theoretical aspects of this ...
Zi-Cai Li   +4 more
doaj   +1 more source

Meromorphic traveling wave solutions of the complex cubic-quintic Ginzburg-Landau equation [PDF]

open access: yes, 2012
We look for singlevalued solutions of the squared modulus M of the traveling wave reduction of the complex cubic-quintic Ginzburg-Landau equation. Using Clunie's lemma, we first prove that any meromorphic solution M is necessarily elliptic or degenerate ...
A.E. Eremenko   +26 more
core   +4 more sources

A degenerating PDE system for phase transitions and damage [PDF]

open access: yes, 2013
In this paper, we analyze a PDE system arising in the modeling of phase transition and damage phenomena in thermoviscoelastic materials. The resulting evolution equations in the unknowns \theta (absolute temperature), u (displacement), and \chi (phase ...
Rocca, Elisabetta, Rossi, Riccarda
core   +1 more source

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