Results 21 to 30 of about 2,572,519 (223)
The discrete fragmentation equations : semigroups, compactness and asynchronous exponential growth [PDF]
, 2012 In this paper we present a class of fragmentation semigroups which are compact in a scale of spaces defined in terms of finite higher moments. We use this compactness result to analyse the long time behaviour of such semigroups and, in particular, to ...
A. C. McBride +19 more
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Existence and Uniqueness of Nonmonotone Solutions in Porous Media Flow
Axioms, 2022 Existence and uniqueness of solutions for a simplified model of immiscible two-phase flow in porous media are obtained in this paper. The mathematical model is a simplified physical model with hysteresis in the flux functions.
Rouven Steinle +3 more
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Electronic Journal of Qualitative Theory of Differential Equations, 2021 We reprove Proposition 3.8 in our paper that was published in [Electron. J. Qual. Theory Differ. Equ. 2021, No. 7, 1–24], to fill a gap in the proof of Corollary 3.7 where the denseness of one of the embeddings does not follow by the original arguments ...
Mihály Kovács, Eszter Sikolya
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Analytic semigroups on vector valued noncommutative $L^p$-spaces [PDF]
, 2012 We give sufficient conditions on an operator space $E$ and on a semigroup of operators on a von Neumann algebra $M$ to obtain a bounded analytic or a $R$-analytic semigroup $(T_t \otimes Id_E)_{t \geq 0}$ on the vector valued noncommutative $L^p$-space ...
Cédric Arhancet
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Quasianalyticity and Semigroups [PDF]
Bulletin of the American Mathematical Society, 1972 This chapter contains a development for linear semigroups which is of interest in the theory of probability and other areas.
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Existence of solutions to neutral differential equations with deviated argument
Electronic Journal of Qualitative Theory of Differential Equations, 2008 In this paper we shall study a neutral differential equation with deviated argument in an arbitrary Banach space $X.$ With the help of the analytic semigroups theory and fixed point method we establish the existence and uniqueness of solutions of the ...
Malik Muslim, Dhirendra Bahuguna
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Analyticity and quasi-analyticity for one-parameter semigroups [PDF]
Proceedings of the American Mathematical Society, 1970 Suppose that T is a strongly continuous (even at 0) one-parameter semigroup of bounded linear transformations on a real Banach space S and T has generator A. THEOREM A. If lim supx.o [ T(x) -I 0. Suppose { q } is a sequence of positive numbers convergent to 0 and each of N(q), q= 1, 2, * * is an increasing sequence of positive integers.
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The stochastic Weiss conjecture for bounded analytic semigroups [PDF]
Journal of the London Mathematical Society, 2012 Suppose −A admits a bounded H∞‐calculus of angle less than π/2 on a Banach space E which has Pisier's property (α), let B be a bounded linear operator from a Hilbert space H into the extrapolation space E−1 of E with respect to A, and let WH denote an H ...
Jamil Abreu +2 more
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Maximal theorems and square functions for analytic operators on Lp-spaces [PDF]
, 2010 Let T : Lp --> Lp be a contraction, with p strictly between 1 and infinity, and assume that T is analytic, that is, there exists a constant K such that n\norm{T^n-T^{n-1}} < K for any positive integer n.
Merdy, Christian Le, Xu, Quanhua
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Waves and Diffusion on Metric Graphs with General Vertex Conditions
, 2018 We prove well-posedness for very general linear wave- and diffusion equations on compact or non-compact metric graphs allowing various different conditions in the vertices.
Engel, Klaus-Jochen +1 more
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