Results 61 to 70 of about 1,194 (210)
A Note on Property (gb) and Perturbations
Abstract and Applied Analysis, 2012 An operator T∈ℬ(X) defined on a Banach space X satisfies property (gb) if the complement in the approximate point spectrum σa(T) of the upper semi-B-Weyl spectrum σSBF+-(T) coincides with the set Π(T) of all poles of the resolvent of T. In this paper, we
Qingping Zeng, Huaijie Zhong
doaj +1 more source
Қарағанды университетінің хабаршысы. Математика сериясы, 2019 The Schrödinger operator L = -∆ + q ( x ) , x ∈ Rn, is one of the main operators of modern quantum mechanics and theoretical physics. It is known that many fundamental results have been obtained for the Schrödinger operator L .
M.B. Muratbekov, M.M. Muratbekov
doaj +1 more source
Some Resolvent Estimates for Sturm Liouville Operators
, 1996 In this paper we derive some a priori estimates on the resolvent of one dimensional Schrödinger operators from the solutions of the associated differential equation with real energy.
Mourre, E., Briet, P.
core +1 more source
Spectral Distribution of Transport Operator Arising in Growing Cell Populations
Journal of Function Spaces, 2014 Transport equation with partly smooth boundary conditions arising in growing cell populations is studied in Lp ...
Hongxing Wu, Shenghua Wang, Dengbin Yuan
doaj +1 more source
Bruno Pini Mathematical Analysis Seminar, 2015 In this article, we show that under some coercive assumption on the complex-valued potential V(x), the derivatives of the resolvent of the non-selfadjoint Schröinger operator H = −∆ + V(x) satisfy some Gevrey estimates at the threshold zero.
Xue Ping Wang
doaj +1 more source
Norm-Resolvent Estimates and Perforated Domains [PDF]
, 2018 In this thesis we are concerned with norm-resolvent estimates for unbounded linear operators. The text is structured into four parts. The first two parts contain mathematical preliminaries, reviews of previous work and an introduction into the two ...
ROSLER, FRANK
core
On Fuzzy Soft Linear Operators in Fuzzy Soft Hilbert Spaces
Abstract and Applied Analysis, 2020 Due to the difficulty of representing problem parameters fuzziness using the soft set theory, the fuzzy soft set is regarded to be more general and flexible than using the soft set.
Nashat Faried +2 more
doaj +1 more source
Resolving the Inflationary Power Spectrum
, 2014 To appear in the proceedings of The 10th International Symposium on Cosmology and Particle Astrophysics (CosPA2013)
openaire +2 more sources
Homogenization and norm-resolvent convergence for elliptic operators in a strip perforated along a curve. [PDF]
, 2016 We consider an infinite planar straight strip perforated by small holes along a curve. In such a domain, we consider a general second-order elliptic operator subject to classical boundary conditions on the holes.
Borisov, D +5 more
core +1 more source
On continuous and residual spectra of operators connected with iterative functional equations
Annales Universitatis Paedagogicae Cracoviensis: Studia Mathematica, 2006 The sum type operator $F$, given by [ F lbrack varphi brack (x) : = displaystylesum^{infty}_{u = 0} 2^{-u} varphi (2^{u} x), ] will be considered on the space $D$ of bounded real functions, equipped with the supremum norm and on its ...
Hans-Heinrich Kairies
doaj