نتایج جستجو برای: interior operator

تعداد نتایج: 129673  

2006
Jack Dongarra Julien Langou Stanimire Tomov Andrew Canning Osni Marques Christof Vömel Lin-Wang Wang

We are concerned with the computation of electronic and optical properties of quantum dots. Using the Energy SCAN (ESCAN) method with empirical pseudopotentials, we compute interior eigenstates around the band gap which determine their properties. Numerically, this interior Hermitian eigenvalue problem poses several challenges, both with respect to accuracy and efficiency. Using these criteria,...

Journal: :Physical review letters 2006
Alexei Kitaev John Preskill

We formulate a universal characterization of the many-particle quantum entanglement in the ground state of a topologically ordered two-dimensional medium with a mass gap. We consider a disk in the plane, with a smooth boundary of length L, large compared to the correlation length. In the ground state, by tracing out all degrees of freedom in the exterior of the disk, we obtain a marginal densit...

2008
Andrew Canning Jack Dongarra Julien Langou Osni Marques Stanimire Tomov Christof Voemel Lin-Wang Wang

We are concerned with the computation of electronic and optical properties of quantum dots. Using the Energy SCAN (ESCAN) method with empirical pseudopotentials, we compute interior eigenstates around the band gap which determine their properties. Numerically, this interior Hermitian eigenvalue problem poses several challenges, both with respect to accuracy and efficiency. Using these criteria,...

2009
GILES AUCHMUTY

This paper describes existence, uniqueness and special eigenfunction representations of H1−solutions of second order, self-adjoint, elliptic equations with both interior and boundary source terms. The equations are posed on bounded regions with Dirichlet conditions on part of the boundary and Neumann conditions on the complement. The system is decomposed into separate problems defined on orthog...

Journal: :Applicable Analysis 2021

For linearized Navier–Stokes equations, we consider an inverse source problem of determining a spatially varying divergence-free factor. We prove the global Lipschitz stability by interior data over time interval and velocity field at t0>0 spatial domain. The key machinery are Carleman estimates for equations operator rot.

Journal: :bulletin of the iranian mathematical society 0
m. s. moslehian ferdowsi university of mashhad j. e. pecaric university of zagreb i. peric university of zagreb

0

2014
G. J. MYKLEBUST LEVENT TUNÇEL

We propose and analyse primal-dual interior-point algorithms for convex optimization problems in conic form. The families of algorithms whose iteration complexity we analyse are so-called short-step algorithms. Our iteration complexity bounds match the current best iteration complexity bounds for primal-dual symmetric interior-point algorithm of Nesterov and Todd, for symmetric cone programming...

Journal: :Evolution Equations and Control Theory 2021

We discuss the set of wavefunctions $\psi_V(t)$ that can be obtained from a given initial condition $\psi_0$ by applying flow Schr\"odinger operator $-\Delta + V(t,x)$ and varying potential $V(t,x)$. show this has empty interior, both as subset sphere in $L^2(\mathbb{R}^d)$ trajectories.

2017
Yan-Ling Liu Hai-Long Yang

Neutrosophic sets (NSs), as a new mathematical tool for dealing with problems involving incomplete, indeterminant and inconsistent knowledge, were proposed by Smarandache. By simplifying NSs, Wang et al. proposed the concept of single valued neutrosophic sets (SVNSs) and studied some properties of SVNSs. In this paper, we mainly investigate the topological structures of single valued neutrosoph...

2015
Alexandru Baltag Nick Bezhanishvili Sonja Smets

Stalnaker introduced a combined epistemic-doxastic logic that can formally express a strong concept of belief, a concept which captures the ‘epistemic possibility of knowledge’. In this paper we first provide the most general extensional semantics for this concept of ‘strong belief’, which validates the principles of Stalnaker’s epistemic-doxastic logic. We show that this general extensional se...

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