Results 71 to 80 of about 142 (138)
Semigroup estimates and fast-slow dynamics in parabolic-hyperbolic systems
Advances in Nonlinear Analysis, 2018 We present a general procedure to describe slow dynamics in parabolic-hyperbolic systems, under suitable assumptions on the terms appearing in the equations. In particular, our strategy relies in semigroup estimates for the evolution system associated to
Strani Marta
doaj +1 more source
, 2002 We prove some spectral inclusions for strongly continuous semigroups. Some sta-bility results are also established. 2000 Mathematics Subject Classification: 47D03, 47A10. 1. Introduction and preliminaries.
Abdelkader Elkoutri, Mohamed Aziz Taoudi
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Resolvent and Scattering Matrix at the Maximum of the Potential [PDF]
, 2008 2000 Mathematics Subject Classification: 35P25, 81U20, 35S30, 47A10, 35B38.We study the microlocal structure of the resolvent of the semiclassical Schrödinger operator with short range potential at an energy which is a unique non-degenerate global ...
Ramond, Thierry +2 more
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, 2009 In this work, we find some asymptotic formulas for the number N(ε)of eigenvalues smaller than −ε (ε > 0) of a self adjoint operator Lwhich is formed by differential expression(Ly)(x) = −(p(x)y(x)) − Q(x)y(x)and with the boundary conditiony(0) = 0as ε →
Adıgüzelov, Ehliman, Karayel, Serpil
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Expansion of eigenvalues of the perturbed discrete bilaplacian. [PDF]
Mon Hefte Math, 2022 Kholmatov SY +2 more
europepmc +1 more source
Spectral mapping theorems for the upper Weyl and upper Browder spectra
, 2018 We discuss the spectral mapping properties of the upper Weyl and upper Browder spectra of an arbitrary ordered Banach algebra element.Mathematics Subject Classication (2010): 46H05, 47A10, 47B65.Key words: Fredholm theory, upper Weyl spectrum, upper ...
Benjamin, Ronalda
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Browder and Weyl spectra of upper triangular operator matrices
, 2010 Let MC = (A/0 C/B) ( B(X ( X ) be an upper triangulat Banach space operator. The relationship between the spectra of MC and M0, and their various distinguished parts, has been studied by a large number of authors in the recent past.
B.P. Duggal
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Well-posedness and stability analysis of an epidemic model with infection age and spatial diffusion. [PDF]
J Math Biol, 2023 Walker C.
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On the iterates of Jackson type operator GS,N in Hilbert space
, 2019 In this paper we study the limit of the iterates of Jackson type operator. Our results continue the works of Badea [2] and Nagler et al. [9, 10]. The proofs are based on spectral theory of linear operators and are performed at first for Hilbert space and
Zapryanova, T, Souroujon, D
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Operator-norm homogenisation estimates for the system of Maxwell equations on periodic singular structures. [PDF]
Calc Var Partial Differ Equ, 2022 Cherednichenko K, D'Onofrio S.
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