Results 21 to 30 of about 3,469 (168)

An inverse problem for a quasilinear parabolic equation with nonlocal boundary and overdetermination conditions [PDF]

open access: yes, 2014
In this paper the inverse problem of finding the time-dependent coefficient of heat capacity together with the solution of heat equation with nonlocal boundary conditions is considered.
Baglan, Irem, Kanca, Fatma
core   +1 more source

Inverse Coefficient Problem of the Parabolic Equation with Periodic Boundary and Integral Overdetermination Conditions [PDF]

open access: yesAbstract and Applied Analysis, 2013
This paper investigates the inverse problem of finding a time-dependent diffusion coefficient in a parabolic equation with the periodic boundary and integral overdetermination conditions. Under some assumption on the data, the existence, uniqueness, and continuous dependence on the data of the solution are shown by using the generalized Fourier method.
openaire   +5 more sources

Ferroelectric Phase Transitions from First Principles [PDF]

open access: yes, 1995
An effective Hamiltonian for the ferroelectric transition in $PbTiO_3$ is constructed from first-principles density-functional-theory total-energy and linear-response calculations through the use of a localized, symmetrized basis set of ``lattice Wannier
Rabe, K. M., Waghmare, U. V.
core   +3 more sources

Extended Iterative Scheme for QCD: Three-point Vertices

open access: yes, 1998
In the framework of a generalized iterative scheme introduced previously to account for the non-analytic coupling dependence associated with the renormalization-group invariant mass scale Lambda, we establish the self-consistency equations of the ...
Driesen, L.   +3 more
core   +1 more source

Introduction to the Quantum Theory of Elementary Cycles: The Emergence of Space, Time and Quantum

open access: yes, 2016
Elementary Cycles Theory is a self-consistent, unified formulation of quantum and relativistic physics. Here we introduce its basic quantum aspects.
Dolce, Donatello
core   +1 more source

Anomaly of linearization and auxiliary integrals [PDF]

open access: yes, 2007
In this note we discuss some formal properties of universal linearization operator, relate this to brackets of non-linear differential operators and discuss application to the calculus of auxiliary integrals, used in compatibility reductions of ...
Kruglikov, Boris
core   +3 more sources

Inverse coefficient super-linear problem for a time fractional parabolic equation under integral overdetermination conditions

open access: yesMathematica Montisnigri, 2023
In this paper, we investigate the inverse problem of the determining the right-hand side of a nonlinear fractional parabolic equation with integral overdetermination condition. For the solvability of the direct problem we use the energy inequality method also known as the methode of functional analysis or the method of a priori estimates, this method ...
Amal Benguesmia   +2 more
openaire   +1 more source

The classical overdetermined Serrin problem

open access: yes, 2017
In this survey we consider the classical overdetermined problem which was studied by Serrin in 1971. The original proof relies on Alexandrov's moving plane method, maximum principles, and a refinement of Hopf's boundary point Lemma.
Nitsch, C., Trombetti, C.
core   +1 more source

Identification of a time-dependent source term in a nonlocal problem for time fractional diffusion equation

open access: yesMathematical Modelling and Analysis
This paper is concerned with the inverse problem of recovering the time dependent source term in a time fractional diffusion equation, in the case of nonlocal boundary condition and integral overdetermination condition.
Mansur I. Ismailov, Muhammed Çiçek
doaj   +1 more source

Direct and Inverse Problems for the Heat Equation with a Dynamic type Boundary Condition [PDF]

open access: yes, 2013
This paper considers the initial-boundary value problem for the heat equation with a dynamic type boundary condition. Under some regularity, consistency and orthogonality conditions, the existence, uniqueness and continuous dependence upon the data of ...
Ismailov, Mansur I., Kerimov, Nazim B.
core   +1 more source

Home - About - Disclaimer - Privacy