Results 1 to 10 of about 2,844 (99)
Cubo (Temuco), 2021 The main goal of this work is to examine the periodic dynamic behavior of some retarded periodic partial differential equations (PDE). Taking into consideration that the linear part realizes the Hille-Yosida condition, we discuss the Massera’s problem to
A. Elazzouzi +2 more
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Closure of the Laplace-Beltrami Operator on 2D Almost-Riemannian Manifolds and Semi-Fredholm Properties of Differential Operators on Lie Manifolds [PDF]
Results in Mathematics, 2021 The problem of determining the domain of the closure of the Laplace-Beltrami operator on a 2D almost-Riemannian manifold is considered. Using tools from theory of Lie groupoids natural domains of perturbations of the Laplace-Beltrami operator are found ...
Ivan Beschastnyi
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On non-adjointable semi-C*-Fredholm operators and semi-C*-Weyl operators
Filomat, 2023 We extend the results from semi-Fredholm theory of adjointable, bounded C*-operators on the standard C*-module, presented in [3], to the case of general bounded C*-operators on arbitrary Hilbert C*-modules.
S. Ivković
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Index theorems for Fredholm, semi-Fredholm, and almost periodic operators: all in one example [PDF]
Journal of Noncommutative Geometry, 2017 Based on operators borrowed from scattering theory, several concrete realizations of index theorems are proposed. The corresponding operators belong to some C*-algebras of pseudo-differential operators with coefficients which either have limits at plus ...
H. Inoue, S. Richard
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Semi-Fredholm theory in $$C^{*}$$-algebras [PDF]
Banach Journal of Mathematical Analysis, 2020 Keckic and Lazovic introduced an axiomatic approach to Fredholm theory by considering Fredholm-type elements in an unital C*-algebra as a generalization of C*-Fredholm operators on the standard Hilbert C*-module introduced by Mishchenko and Fomenko and ...
S. Ivković
semanticscholar +1 more source
On the Coherent State Path Integral for Linear Systems [PDF]
, 2005 We present a computation of the coherent state path integral for a generic linear system using ``functional methods'' (as opposed to discrete time approaches).
A. Albeverio +9 more
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Modular Theory, Non-Commutative Geometry and Quantum Gravity [PDF]
, 2010 This paper contains the first written exposition of some ideas (announced in a previous survey) on an approach to quantum gravity based on Tomita-Takesaki modular theory and A.
Bertozzini, Paolo +2 more
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A Fredholm Determinant for Semi-classical Quantization [PDF]
, 1993 We investigate a new type of approximation to quantum determinants, the ``\qFd", and test numerically the conjecture that for Axiom A hyperbolic flows such determinants have a larger domain of analyticity and better convergence than the \qS s derived ...
Cvitanović, Predrag +3 more
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Pimsner algebras and Gysin sequences from principal circle actions [PDF]
, 2015 A self Morita equivalence over an algebra B, given by a B-bimodule E, is thought of as a line bundle over B. The corresponding Pimsner algebra O_E is then the total space algebra of a noncommutative principal circle bundle over B.
Arici, Francesca +2 more
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, 2022 In this work, we study the existence of periodic solutions for a class of linear partial functional differential equations with infinite delay. Inspiring by an existing study, by applying the perturbation theory of semi-Fredholm operators, we introduce a
A. Elazzouzi +2 more
semanticscholar +1 more source