Results 11 to 20 of about 98,775 (107)

Nonequilibrium Langevin Approach to Quantum Optics in Semiconductor Microcavities [PDF]

open access: yes, 2007
Recently the possibility of generating nonclassical polariton states by means of parametric scattering has been demonstrated. Excitonic polaritons propagate in a complex interacting environment and contain real electronic excitations subject to ...
D. F. Walls   +7 more
core   +2 more sources

Inverse Free Iterative Methods for Nonlinear Ill-Posed Operator Equations

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 2014
We present a new iterative method which does not involve inversion of the operators for obtaining an approximate solution for the nonlinear ill-posed operator equation F(x)=y.
Ioannis K. Argyros   +2 more
doaj   +1 more source

Some remarks on the duality method for Integro-Differential equations with measure data [PDF]

open access: yes, 2015
We deal with existence, uniqueness, and regularity for solutions of the boundary value problem $$ \begin{cases} {\mathcal L}^s u = \mu &\quad \text{in $\Omega$}, u(x)=0 \quad &\text{on} \ \ \mathbb{R}^N\backslash\Omega, \end{cases} $$ where $\Omega$ is
Petitta, Francesco
core   +1 more source

Symmetry Operators for the Fokker-Plank-Kolmogorov Equation with Nonlocal Quadratic Nonlinearity [PDF]

open access: yes, 2007
The Cauchy problem for the Fokker-Plank-Kolmogorov equation with a nonlocal nonlinear drift term is reduced to a similar problem for the correspondent linear equation.
Rezaev, Roman O.   +2 more
core   +3 more sources

General approximation-solvability of nonlinear equations involving -regular operators

open access: yesApplied Mathematics Letters, 1993
AbstractHere we consider a general approximation-solvability scheme involving -regular operators —a generalization of -proper operators—introduced and studied by Petryshyn [1] and further studied by Milojevic' [2], Petryshyn [3], and others. Among significant applications, -regular version of the Petryshyn theorem is given.
openaire   +2 more sources

Rigidity versus symmetry breaking via nonlinear flows on cylinders and Euclidean spaces

open access: yes, 2015
This paper is motivated by the characterization of the optimal symmetry breaking region in Caffarelli-Kohn-Nirenberg inequalities. As a consequence, optimal functions and sharp constants are computed in the symmetry region.
Dolbeault, Jean   +2 more
core   +1 more source

A Unified Approach to Solvability and Stability of Multipoint BVPs for Langevin and Sturm–Liouville Equations with CH–Fractional Derivatives and Impulses via Coincidence Theory

open access: yesFractal and Fractional
The Langevin equation is a model for describing Brownian motion, while the Sturm–Liouville equation is an important mechanical model. This paper focuses on the solvability and stability of nonlinear impulsive Langevin and Sturm–Liouville equations with ...
Kaihong Zhao, Juqing Liu, Xiaojun Lv
doaj   +1 more source

General Approximation-Solvability of Nonlinear Equations Involving $\mathcal A$-regular Operators

open access: yesZeitschrift für Analysis und ihre Anwendungen, 1994
Here we consider a general approximation-solvability scheme involving \mathcal A -regular operators - a generalization of \mathcal A -proper operators - introduced ...
openaire   +3 more sources

Dynamics with Infinitely Many Derivatives: The Initial Value Problem

open access: yes, 2008
Differential equations of infinite order are an increasingly important class of equations in theoretical physics. Such equations are ubiquitous in string field theory and have recently attracted considerable interest also from cosmologists.
A. Kilbas   +50 more
core   +2 more sources

Regularity, Local and Microlocal Analysis in Theories of Generalized Functions [PDF]

open access: yes, 2007
We introduce a general context involving a presheaf A and a subpresheaf B of A. We show that all previously considered cases of local analysis of generalized functions (defined from duality or algebraic techniques) can be interpretated as the B-local ...
Marti, Jean-André
core   +3 more sources

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