Results 21 to 30 of about 13,472,146 (356)
On the Harnack inequality for non-divergence parabolic equations
Mathematics in Engineering, 2021 In this paper we propose an elementary proof of the Harnack inequality for linear parabolic equations in non-divergence form.
Ugo Gianazza, Sandro Salsa
doaj +1 more source
The best constant of Sobolev inequality corresponding to anti-periodic boundary value problem
Electronic Journal of Qualitative Theory of Differential Equations, 2014 In this paper we establish the best constant of $\mathcal{L}^{p}$ Sobolev inequality for a function with anti-periodic boundary conditions. The best constant is expressed by $\mathcal{L}^q$ norm of $(M-1)$-th order Euler polynomial.
Jozef Kiseľák
doaj +1 more source
Mathematics in Engineering, 2022 Half a century after the appearance of the celebrated paper by Serrin about overdetermined boundary value problems in potential theory and related symmetry properties, we reconsider semilinear polyharmonic equations under Dirichlet boundary conditions in
Filippo Gazzola, Gianmarco Sperone
doaj +1 more source
Influence of an L^{p}-perturbation on Hardy-Sobolev inequality with singularity a curve [PDF]
Opuscula Mathematica, 2021 We consider a bounded domain \(\Omega\) of \(\mathbb{R}^N\), \(N \geq 3\), \(h\) and \(b\) continuous functions on \(\Omega\). Let \(\Gamma\) be a closed curve contained in \(\Omega\).
Idowu Esther Ijaodoro +1 more
doaj +1 more source
AIMS Mathematics, 2022 In this paper, a class of fourth order differential operators with eigenparameter-dependent boundary conditions and transmission conditions is considered.
Kun Li , Peng Wang
doaj +1 more source
Efficient implementation of the nonequilibrium Green function method for electronic transport calculations [PDF]
, 2009 An efficient implementation of the nonequilibrium Green function method combined with the densityfunctional theory, using localized pseudoatomic orbitals, is presented for electronic transport calculations of a system connected with two leads under a ...
T. Ozaki, K. Nishio, H. Kino
semanticscholar +1 more source
Moroccan Journal of Pure and Applied Analysis, 2016 We derive some Hermite Hamamard type integral inequalities for functions whose second derivatives absolute value are convex. Some eror estimates for the trapezoidal formula are obtained. Finally, some natural applications to special means of real numbers
Erden Samet, Sarikaya Mehmet Zeki
doaj +1 more source
Journal of Combinatorial Theory, Series A, 2000 The authors study discrete Green's functions and their relationship with discrete Laplace equations. They give different ways to construct such functions: Eigenfunctions or Cartesian product of graphs, among others.
Shing-Tung Yau, Fan Chung
openaire +2 more sources
Advanced Industrial and Engineering Polymer Research, 2020 The melt drawability including melt strength (MS) and stretching ratio (V) of the neat low-density polyethylene (LDPE) and the LDPE composites loaded with a nanometer zinc oxide (nano-ZnO) were measured using a melt spinning method in capillary extruding
Ji-Zhao Liang
doaj +1 more source
BOUNDARY VALUE PROBLEM WITH SHIFT FOR A FRACTIONAL ORDER DELAY DIFFERENTIAL EQUATION [PDF]
Vestnik KRAUNC: Fiziko-Matematičeskie Nauki, 2019 In this paper we prove existence and uniqueness theorem to a boundary value problem with shift for a fractional order ordinary delay differential equation. The solution of the problem is written out in terms of the Green function.
M. G. Mazhgikhova
doaj +1 more source