Results 21 to 30 of about 32,657 (175)

Weak solutions of fractional differential equations in non cylindrical domains

open access: yesNonlinear 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   +2 more sources

3D THz-TDS SAR Imaging by an Inverse Synthetic Cylindrical Aperture

open access: yesIEEE Access, 2023
Terahertz time-domain spectroscopy (THz-TDS) is a promising tool for high-resolution 3D imaging of objects due to the high center frequency and bandwidth compared to microwave systems.
Dilyan Damyanov   +5 more
doaj   +1 more source

The Non-Homogeneous Wave Equation in Non-Cylindrical Domains

open access: yesTEMA - Tendências em Matemática Aplicada e Computacional, 2001
We prove the existence and uniqueness of a global regular solution to the mixed problem for the nonhomogeneous wave equation in a noncylindrical domain using a hiperbolic nonsingular smooth transformation of the original problem to a nonlinear hyperbolic problem in a cylinder.
N.A Lar'kin, M.H. Simões
openaire   +2 more sources

Stability for the Kirchhoff Plates Equations with Viscoelastic Boundary Conditions in Noncylindrical Domains

open access: yesAbstract and Applied Analysis, 2013
We study Kirchhoff plates equations with viscoelastic boundary conditions in a noncylindrical domain. This work is devoted to proving the global existence, uniqueness of solutions, and decay of the energy of solutions for Kirchhoff plates equations in a ...
Jum-Ran Kang
doaj   +1 more source

Fredholmness of an abstract differential equation of elliptic type

open access: yesElectronic Journal of Qualitative Theory of Differential Equations, 2004
In this work, we obtain algebraic conditions which assure the Fredholm solvability of an abstract differential equation of elliptic type. In this respect, our work can be considered as an extension of Yakubov's results to the case of boundary conditions ...
A. Aibeche
doaj   +1 more source

Multiplicity results for a class of $p(x)$-Kirchhoff type equations with combined nonlinearities

open access: yesElectronic Journal of Qualitative Theory of Differential Equations, 2012
Using the mountain pass theorem combined with the Ekeland variational principle, we obtain at least two distinct, non-trivial weak solutions for a class of $p(x)$-Kirchhoff type equations with combined nonlinearities.
Nguyen Thanh Chung
doaj   +1 more source

Capillary Surfaces in Non-Cylindrical Domains

open access: yesZeitschrift für Analysis und ihre Anwendungen, 2000
This paper is concerned with the capillary problem in a class of non-cylindrical domains in K \subset \mathbb R^{n+1} obtained by scaling a bounded cross-section ­ \Omega \subset \mathbb R^n
openaire   +3 more sources

A red-green photochromic bacterial protein as a new contrast agent for improved photoacoustic imaging

open access: yesPhotoacoustics, 2022
The GAF3 domain of the cyanobacteriochrome Slr1393 from Synechocystis sp. PCC6803, binding phycocyanobilin as a chromophore, shows photochromicity between two stable, green- and red-absorbing states, characterized by relatively high photoconversion ...
Francesco Garzella   +6 more
doaj   +1 more source

Dynamical boundary conditions in a non-cylindrical domain for the Laplace equation [PDF]

open access: yesJournal of Mathematical Analysis and Applications, 2018
This is a new version of a previous paper submitted here in Arxiv. It has substantial changes from the previous one.
Lopes, Pedro T. P., Pereira, Marcone C.
openaire   +2 more sources

Effective behavior of long and short fiber-reinforced viscoelastic composites

open access: yesApplications in Engineering Science, 2021
We study the homogenized properties of linear viscoelastic composite materials in three dimensions. The composites are assumed to be constituted by a non-aging, isotropic viscoelastic matrix reinforced by square or hexagonal arrangements of elastic ...
O.L. Cruz-González   +5 more
doaj   +1 more source

Home - About - Disclaimer - Privacy