Results 31 to 40 of about 115,549 (311)

An elliptic boundary value problem for G2-structures [PDF]

open access: yes, 2018
We show that the G2 holonomy equation on a manifold with boundary, with prescribed 3-form on the boundary, is elliptic. The main point is to set up a suitable linear elliptic boundary value problem. This result leads to a deformation theory.
Donaldson, Simon
core   +1 more source

The study of a mixed problem for one class of third order differential equations

open access: yesAdvances in Difference Equations, 2018
This work is dedicated to the study of existence and uniqueness of almost everywhere solution of a multidimensional mixed problem for one class of third order differential equations with nonlinear operator on the right-hand side. The conception of almost
Samed J. Aliyev   +2 more
doaj   +1 more source

On the Uniqueness Problem for Fourier Series

open access: yesReal Analysis Exchange, 2004
Denote by \(S_n(x, f)\), \(n= 1,2,\dots\), the partial sums of the Fourier series of a function \(f\in L_1(-\pi,\pi)\).
openaire   +3 more sources

A solvability conditions of mixed problems for equations of parabolic type with involution

open access: yesҚарағанды университетінің хабаршысы. Математика сериясы, 2018
In this work the partial differential equations with involutions are considered. The mixed problems for the parabolic type equation, with constant and variable constants, corresponding to the Dirichlet type boundary conditions is investigated.
A.A. Sarsenbi
doaj   +1 more source

Receding contact problem for a coated layer and a half-plane loaded by a rigid cylindrical stamp

open access: yesArchives of Mechanics, 2013
In this study, the frictionless contact problem between a coated layer and a half-plane is considered when they are pressed by a rigid cylindrical stamp.
H. Adibelli, I. Comez, R. Erdol
doaj   +1 more source

Modified Fourier expansions: theory, construction and applications

open access: yes, 2010
Modified Fourier expansions present an alternative to more standard algorithms for the approximation of nonperiodic functions in bounded domains. This thesis addresses the theory of such expansions, their effective construction and computation, and ...

core   +1 more source

Plane wave diffraction by a finite plate with impedance boundary conditions. [PDF]

open access: yesPLoS ONE, 2014
In this study we have examined a plane wave diffraction problem by a finite plate having different impedance boundaries. The Fourier transforms were used to reduce the governing problem into simultaneous Wiener-Hopf equations which are then solved using ...
Rab Nawaz, Muhammad Ayub, Akmal Javaid
doaj   +1 more source

Image Feature Extraction Using 2D Mel-Cepstrum [PDF]

open access: yes, 2010
In this paper, a feature extraction method based on two-dimensional (2D) mel-cepstrum is introduced. Feature matrices resulting from the 2D mel-cepstrum, Fourier LDA approach and original image matrices are individually applied to the Common Matrix ...
Çakır, Serdar   +5 more
core   +1 more source

Lamb's plane problem in a thermo-elastic micropolar medium with stretch

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 1987
A study is made of the Lamb plane problem in a thermo-elastic micropolar medium with the effect of stretch. The problem is solved for an arbitrary, normal load distribution by using the double Fourier transform. The displacement components, force stress,
T. K. Chadha   +2 more
doaj   +1 more source

Horn’s problem and Fourier analysis

open access: yesTunisian Journal of Mathematics, 2019
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
openaire   +3 more sources

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