Results 31 to 40 of about 3,099 (257)

The adapted solution and comparison theorem for backward stochastic differential equations with Poisson jumps and applications [PDF]

open access: yes, 2008
This paper deals with a class of backward stochastic differential equations with Poisson jumps and with random terminal times. We prove the existence and uniqueness result of adapted solution for such a BSDE under the assumption of non-Lipschitzian ...
Mao, X.   +5 more
core   +1 more source

Modeling a Quantum Hall System via Elliptic Equations

open access: yesAdvances in Mathematical Physics, 2009
Quantum Hall systems are a suitable theme for a case study in the general area of nanotechnology. In particular, it is a good framework to search for universal principles relevant to nanosystem modeling and nanosystem-specific signal processing. Recently,
Artur Sowa
doaj   +1 more source

Some Modified Bifurcation Problems with Application to Imperfection Sensitivity in Buckling [PDF]

open access: yes, 1972
The branching theory of solutions of certain nonlinear elliptic partial differential equations is developed, when the nonlinear term is perturbed from unforced to forced.
Keener, James Paul
core   +1 more source

Systems of quasilinear elliptic equations with dependence on the gradient via subsolution-supersolution method [PDF]

open access: yes, 2017
For the homogeneous Dirichlet problem involving a system of equations driven by (p, q)-Laplacian operators and general gradient dependence we prove the existence of solutions in the ordered rectangle determined by a subsolution-supersolution.
Motreanu, Dumitru   +2 more
core   +1 more source

Approximation with harmonic and generalized harmonic polynomials in the partition of unity method

open access: yesComputer Assisted Methods in Engineering and Science, 2023
The aim of the paper is twofold. In the first part, we present an analysis of the approximation properties of "complete systems" , that is, systems of functions which satisfy a given differential equation and are dense in the set of all solutions.
J. M. Melenk, I. Babuška
doaj  

On the adjoint of a symmetric operator [PDF]

open access: yes, 2007
In general it is a non-trivial task to determine the adjoint S* of an unbounded symmetric operator S in a Hilbert or Krein space. We propose a method to specify S* explicitly which makes use of two boundary mappings that satisfy an abstract Green's ...
Meda S.   +47 more
core   +1 more source

Two-loop integrals for t t ¯ $$ t\overline{t} $$ +jet production at hadron colliders in the leading colour approximation

open access: yesJournal of High Energy Physics
We compute the differential equations for the two remaining integral topologies contributing to the leading colour two-loop amplitudes for pp → t t ¯ j $$ t\overline{t}j $$ .
Simon Badger   +3 more
doaj   +1 more source

Comprehensive Assessment of Arterial, Tissue, and Venous Collaterals for Evaluating the Infarct Growth Rate: The Multimodal Collateral Score

open access: yesAnnals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Background Collaterals are crucial factors that influence the infarct growth rate (IGR). We aimed to determine whether a comprehensive multimodal collateral score (MCS), incorporating collateral assessment at the arterial, tissue, and venous levels, is associated with functional independence and provides incremental prognostic value over ...
Giorgio Busto   +12 more
wiley   +1 more source

BOUNDARY VALUE PROBLEMS AND GENERAL SYSTEMS OF NONLINEAR EQUATIONS ELLIPTIC IN THE SENSE OF LAVRENT'EV

open access: yesDemonstratio Mathematica, 1984
This work deals with boundary value problems of the type \(Re[\overline{a(t)} w(t)]=\gamma (t)\) and \(w^+(t)=g(t) w^-(t)+h(t)\) for the general form of the systems of nonlinear equations in two dimensional domains.
openaire   +2 more sources

A Numerical–Experimental Approach for Multi‐Matrix Fiber‐Reinforced Plastics Characterization Using Finite Element Model Updating

open access: yesAdvanced Engineering Materials, EarlyView.
A numerical–experimental framework is developed for characterizing multi‐matrix fiber‐reinforced polymers (MM‐FRPs) combining epoxy and polyurethane matrices. Harmonic bending tests are integrated with finite element model updating (FEMU) to simultaneously identify elastic and viscoelastic material parameters.
Rodrigo M. Dartora   +4 more
wiley   +1 more source

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