Results 1 to 10 of about 1,718 (186)
On zeros of an entire function coinciding with exponential typequasi-polynomials, associated with a regular third-order differential operator on an interval [PDF]
Қарағанды университетінің хабаршысы. Математика сериясы, 2021 In this paper, we consider the question on study of zeros of an entire function of one class, which coincides with quasi-polynomials of exponential type.
N.S. Imanbaev, Ye. Kurmysh
doaj +2 more sources
Nonlinear Eigenvalue Problems and Bifurcation for Quasi-Linear Elliptic Operators
Mediterranean Journal of Mathematics, 2022 AbstractIn this paper, we analyze an eigenvalue problem for quasi-linear elliptic operators involving homogeneous Dirichlet boundary conditions in a open smooth bounded domain. We show that the eigenfunctions corresponding to the eigenvalues belong to$$L^{\infty }$$L∞, which implies$$C^{1,\alpha }$$C1,αsmoothness, and the first eigenvalue is simple ...
Emmanuel Wend-Benedo Zongo, Bernhard Ruf
openaire +3 more sources
AN EIGENVALUE PROBLEM FOR A NON-BOUNDED QUASILINEAR OPERATOR [PDF]
Proceedings of the Edinburgh Mathematical Society, 2004 AbstractIn this paper we study the eigenvalues associated with a positive eigenfunction of a quasilinear elliptic problem with an operator that is not necessarily bounded. For that, we use the bifurcation theory and obtain the existence of positive solutions for a range of values of the bifurcation parameter.AMS 2000 Mathematics subject classification:
Carmona Tapia, José +1 more
openaire +5 more sources
Dedalus: A flexible framework for numerical simulations with spectral methods
Physical Review Research, 2020 Numerical solutions of partial differential equations enable a broad range of scientific research. The Dedalus project is a flexible, open-source, parallelized computational framework for solving general partial differential equations using spectral ...
Keaton J. Burns +4 more
doaj +1 more source
Existence of solution for some quasi-homogenous and quasi-elliptic Nonlinear Eigenvalue Problems
Zanco Journal of Pure and Applied Sciences, 2019 The existence of solutions for a non linear eigenvalue problems is well studied and proved for n even. In this article we will study the case of odd dimension n>1 for the family of quasi-homogeneous and quasi-elliptic operators and we will give some ...
Fatima M. ABOUD
doaj +1 more source
Linear Algebra and its Applications, 2001 Eigenvalue enclosing of the elliptic operator which is linearized at an exact solution of certain nonlinear elliptic equations is considered. This problem is relevant in the analysis of the stability or bifurcation of some solutions for nonlinear problems. The indices of eigenvalues, especially the first eigenvalue are also investigated.
Nagatou, K., Nakao, M.T.
openaire +2 more sources
Advances in Differential Equations, 1999 zbMATH Open Web Interface contents unavailable due to conflicting licenses.
LUPO, DANIELA ELISABETTA +2 more
openaire +4 more sources
Iterative Matrix Techniques Based on Averages
AlgorithmsMatrices have an important role in modern engineering problems like artificial intelligence, biomedicine, machine learning, etc. The present paper proposes new algorithms to solve linear problems involving finite matrices as well as operators in infinite
María A. Navascués
doaj +1 more source
Maximization problems for eigenvalues of linear elliptic operators
Sibirskie Elektronnye Matematicheskie Izvestiya, 2017 The work discusses the eigenvalue problem for elliptic operators. In particular, it is shown that every solution of the eigenvalue maximization problem corresponds to a saddle point for some functional associated with this problem. The conditions respected to this statement fulfilment are formulated.
openaire +1 more source
Eigenvalue Problem Describing Magnetorotational Instability in Outer Regions of Galaxies
MathematicsThe existence of magnetic fields in spiral galaxies is beyond doubt and is confirmed by both observational data and theoretical models. Their generation occurs due to the dynamo mechanism action associated with the properties of turbulence.
Evgeny Mikhailov, Tatiana Khasaeva
doaj +1 more source