Results 121 to 130 of about 1,344,696 (274)

Uniform resolvent convergence for strip with fast oscillating boundary

open access: yes, 2013
In a planar infinite strip with a fast oscillating boundary we consider an elliptic operator assuming that both the period and the amplitude of the oscillations are small.
Amirat   +51 more
core   +1 more source

Generalized Yosida Approximations Based on Relatively A-Maximal m-Relaxed Monotonicity Frameworks

open access: yesAbstract and Applied Analysis, 2013
We introduce and study a new notion of relatively A-maximal m-relaxed monotonicity framework and discuss some properties of a new class of generalized relatively resolvent operator associated with the relatively A-maximal m-relaxed monotone operator and ...
Heng-you Lan
doaj   +1 more source

A comparison theorem for operators with compact resolvent [PDF]

open access: yesProceedings of the American Mathematical Society, 1971
The asymptotic behavior of the eigenvalue sequence of a semibounded operator with compact resolvent is stable under relatively bounded perturbations.
openaire   +2 more sources

The resolvent of a singularly perturbed elliptic operator

open access: yesJournal of Mathematical Analysis and Applications, 1977
AbstractLet A and B be uniformly elliptic operators of orders 2m and 2n, respectively, m > n. We consider the Dirichlet problems for the equations (ϵ2(m − n)A + B + λ2nI)uϵ = f and (B + λ2nI)u = f in a bounded domain Ω in Rk with a smooth boundary ∂Ω. The estimate ∥ uϵ − u ∥L2(Ω) ⩽ Cϵ ¦ λ ¦−2n + 1(1 + ϵ ¦ λ ¦)−1 ∥ f ∥L2(Ω) is derived.
Zeev Schuss, Zeev Schuss
openaire   +2 more sources

On the generalized resolvents of isometric operators with gaps [PDF]

open access: yesarXiv, 2012
In this paper we obtain some slight correction and generalization of the results of Ryabtseva on the generalized resolvents for isometric operators with a gap in their spectrum. Also, analogs of some McKelvey's results and a short proof of Inin's formula for the generalized resolvents of an isometric operator are obtained.
arxiv  

On $L^p$ resolvent estimates for elliptic operators on compact manifolds [PDF]

open access: yesarXiv, 2013
We prove uniform $L^p$ estimates for resolvents of higher order elliptic self-adjoint differential operators on compact manifolds without boundary, generalizing a corresponding resul of [3] in the case of Laplace-- Beltrami operators on Riemannian manifolds. In doing so, we follow the methods, developed in [1] very closely.
arxiv  

Trace expansions for elliptic cone operators with stationary domains

open access: yes, 2009
We analyze the behavior of the trace of the resolvent of an elliptic cone differential operator as the spectral parameter tends to infinity. The resolvent splits into two components, one associated with the minimal extension of the operator, and another,
Gil, Juan B.   +2 more
core   +1 more source

Resolvent expansions of 3D magnetic Schrödinger operators and Pauli operators [PDF]

open access: yesJournal of Mathematical Physics
We obtain asymptotic resolvent expansions at the threshold of the essential spectrum for magnetic Schrödinger and Pauli operators in dimension three. These operators are treated as perturbations of the Laplace operator in L2(R3) and L2(R3;C2), respectively.
Arne Jensen, Hynek Kovařík
openaire   +3 more sources

Dichotomy and H^infinity functional calculi

open access: yesElectronic Journal of Differential Equations, 1995
densely defined closed operator on a Banach space is studied. We give conditions under which an operator with an $H^infty$ functional calculus has dichotomy.
R. DeLaubenfels, Y. Latushkin
doaj  

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