Results 11 to 20 of about 52,070 (265)
Exact controllability problem of a wave equation in non-cylindrical domains
Electronic Journal of Differential Equations, 2015 Let $\alpha: [0, \infty)\to(0, \infty)$ be a twice continuous differentiable function which satisfies that $\alpha(0)=1$, $\alpha'$ is monotone and ...
Hua Wang, Yijun He, Shengjia Li
doaj +2 more sources
An extension of Rothe’s method to non-cylindrical domains [PDF]
Applications of Mathematics, 2007 zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Kuliev, Komil, Persson, Lars-Erik
openaire +2 more sources
Variational Equations of Schroedinger-Type in Non-cylindrical Domains
Journal of Differential Equations, 2001 The boundary value problem \[ u(x, t)_t- i\sum (a_{ij}(x, t) u(x,t)_{x_i})_{x_j}- c(x,t) u(x,t)= f(x,t)\;\text{in }Q, \] \[ u(x,t)= 0\;\text{on }\Sigma,\quad u(x,0)= u_0(x)\;\text{on }Q_0, \] is investigated, where \(Q\subset \mathbb{R}^n\times (0,T)\) is an open subset (with the lateral boundary denoted by \(\Sigma\)) whose sections \(Q_t\) (\(t ...
BERNARDI, MARCO LUIGI +2 more
openaire +1 more source
p-Laplacian wave equations in non-cylindrical domains
, 2021 This paper is devoted to studying the stability of p-Laplacian wave equations with strong damping in non-cylindrical domains. The method of proof based on some estimates for time-varying coefficients rising from moving boundary and a modified Kormonik inequality.
Liu, Lingyang, Gao, Hang
openaire +2 more sources
Complex WGM frequencies of gyroelectric cylindrical resonators
IET Microwaves, Antennas & Propagation, 2021 Asymptotic closed‐form expressions for calculating complex transverse electric (TE)/transverse magnetic (TM) whispering gallery mode (WGM) frequencies in homogeneous gyroelectric circular cylindrical resonators of infinite length are derived. In addition,
Konstantinos Katsinos +4 more
doaj +1 more source
Tribology Online, 2022 The purpose of this work is to investigate the effect of cylindrical, kite and triangular shaped dimples on static, dynamic and stability performance of partial textured hydrodynamic journal bearing working under turbulent regime.
Jagjit Singh Maan, Rajeev Kumar Awasthi
doaj +1 more source
Weak solutions of parabolic equations in non-cylindrical domains [PDF]
Proceedings of the American Mathematical Society, 1997 In their classical work, Ladyzhenskaya and Ural ′ ’
Brown, Russell M. +2 more
openaire +2 more sources
Non-Fourier Heat Conduction of a Functionally Graded Cylinder Containing a Cylindrical Crack
Advances in Mathematical Physics, 2020 The present work investigates the problem of a cylindrical crack in a functionally graded cylinder under thermal impact by using the non-Fourier heat conduction model.
Jiawei Fu +3 more
doaj +1 more source
Weak solutions of fractional differential equations in non cylindrical domains
Nonlinear Analysis: Real World Applications, 2017 We study a time fractional heat equation in a noncylindrical domain. The problem is one-dimensional. We prove existence of properly defined weak solutions by means of the Galerkin approximation.
A. Kubica, P. Rybka, K. Ryszewska
openaire +3 more sources
Logarithmic wave equations in non-cylindrical domains
, 2021 This paper is devoted to studying a type of logarithmic wave equation in non-cylindrical domains. Firstly, by the penalty method, we prove the existence of weak solutions to such kind of equations. Secondly, different from the dissipative wave equation, the energy defined in this problem is not always positive.
openaire +2 more sources