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Linear Dynamical Systems On Hilbert Spaces Typical Properties And Explicit Examples
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Book Synopsis Linear Dynamical Systems on Hilbert Spaces: Typical Properties and Explicit Examples by : S. Grivaux
Download or read book Linear Dynamical Systems on Hilbert Spaces: Typical Properties and Explicit Examples written by S. Grivaux and published by American Mathematical Soc.. This book was released on 2021-06-21 with total page 147 pages. Available in PDF, EPUB and Kindle. Book excerpt: We solve a number of questions pertaining to the dynamics of linear operators on Hilbert spaces, sometimes by using Baire category arguments and sometimes by constructing explicit examples. In particular, we prove the following results. (i) A typical hypercyclic operator is not topologically mixing, has no eigen-values and admits no non-trivial invariant measure, but is densely distri-butionally chaotic. (ii) A typical upper-triangular operator with coefficients of modulus 1 on the diagonal is ergodic in the Gaussian sense, whereas a typical operator of the form “diagonal with coefficients of modulus 1 on the diagonal plus backward unilateral weighted shift” is ergodic but has only countably many unimodular eigenvalues; in particular, it is ergodic but not ergodic in the Gaussian sense. (iii) There exist Hilbert space operators which are chaotic and U-frequently hypercyclic but not frequently hypercyclic, Hilbert space operators which are chaotic and frequently hypercyclic but not ergodic, and Hilbert space operators which are chaotic and topologically mixing but not U-frequently hypercyclic. We complement our results by investigating the descriptive complexity of some natural classes of operators defined by dynamical properties.
Book Synopsis Asymptotic Counting in Conformal Dynamical Systems by : Mark Pollicott
Download or read book Asymptotic Counting in Conformal Dynamical Systems written by Mark Pollicott and published by American Mathematical Society. This book was released on 2021-09-24 with total page 139 pages. Available in PDF, EPUB and Kindle. Book excerpt: View the abstract.
Book Synopsis The Mathematical Legacy of Victor Lomonosov by : Richard M. Aron
Download or read book The Mathematical Legacy of Victor Lomonosov written by Richard M. Aron and published by Walter de Gruyter GmbH & Co KG. This book was released on 2020-08-10 with total page 364 pages. Available in PDF, EPUB and Kindle. Book excerpt: The fundamental contributions made by the late Victor Lomonosov in several areas of analysis are revisited in this book, in particular, by presenting new results and future directions from world-recognized specialists in the field. The invariant subspace problem, Burnside’s theorem, and the Bishop-Phelps theorem are discussed in detail. This volume is an essential reference to both researchers and graduate students in mathematical analysis.
Book Synopsis Cohomological Tensor Functors on Representations of the General Linear Supergroup by : Thorsten Heidersdorf
Download or read book Cohomological Tensor Functors on Representations of the General Linear Supergroup written by Thorsten Heidersdorf and published by American Mathematical Soc.. This book was released on 2021-07-21 with total page 106 pages. Available in PDF, EPUB and Kindle. Book excerpt: We define and study cohomological tensor functors from the category Tn of finite-dimensional representations of the supergroup Gl(n|n) into Tn−r for 0 < r ≤ n. In the case DS : Tn → Tn−1 we prove a formula DS(L) = ΠniLi for the image of an arbitrary irreducible representation. In particular DS(L) is semisimple and multiplicity free. We derive a few applications of this theorem such as the degeneration of certain spectral sequences and a formula for the modified superdimension of an irreducible representation.
Book Synopsis Decoupling on the Wiener Space, Related Besov Spaces, and Applications to BSDEs by : Stefan Geiss
Download or read book Decoupling on the Wiener Space, Related Besov Spaces, and Applications to BSDEs written by Stefan Geiss and published by American Mathematical Society. This book was released on 2021-11-16 with total page 112 pages. Available in PDF, EPUB and Kindle. Book excerpt: View the abstract.
Book Synopsis Hamiltonian Perturbation Theory for Ultra-Differentiable Functions by : Abed Bounemoura
Download or read book Hamiltonian Perturbation Theory for Ultra-Differentiable Functions written by Abed Bounemoura and published by American Mathematical Soc.. This book was released on 2021-07-21 with total page 89 pages. Available in PDF, EPUB and Kindle. Book excerpt: Some scales of spaces of ultra-differentiable functions are introduced, having good stability properties with respect to infinitely many derivatives and compositions. They are well-suited for solving non-linear functional equations by means of hard implicit function theorems. They comprise Gevrey functions and thus, as a limiting case, analytic functions. Using majorizing series, we manage to characterize them in terms of a real sequence M bounding the growth of derivatives. In this functional setting, we prove two fundamental results of Hamiltonian perturbation theory: the invariant torus theorem, where the invariant torus remains ultra-differentiable under the assumption that its frequency satisfies some arithmetic condition which we call BRM, and which generalizes the Bruno-R¨ussmann condition; and Nekhoroshev’s theorem, where the stability time depends on the ultra-differentiable class of the pertubation, through the same sequence M. Our proof uses periodic averaging, while a substitute for the analyticity width allows us to bypass analytic smoothing. We also prove converse statements on the destruction of invariant tori and on the existence of diffusing orbits with ultra-differentiable perturbations, by respectively mimicking a construction of Bessi (in the analytic category) and MarcoSauzin (in the Gevrey non-analytic category). When the perturbation space satisfies some additional condition (we then call it matching), we manage to narrow the gap between stability hypotheses (e.g. the BRM condition) and instability hypotheses, thus circumbscribing the stability threshold. The formulas relating the growth M of derivatives of the perturbation on the one hand, and the arithmetics of robust frequencies or the stability time on the other hand, bring light to the competition between stability properties of nearly integrable systems and the distance to integrability. Due to our method of proof using width of regularity as a regularizing parameter, these formulas are closer to optimal as the the regularity tends to analyticity
Book Synopsis Hardy-Littlewood and Ulyanov Inequalities by : Yurii Kolomoitsev
Download or read book Hardy-Littlewood and Ulyanov Inequalities written by Yurii Kolomoitsev and published by American Mathematical Society. This book was released on 2021-09-24 with total page 118 pages. Available in PDF, EPUB and Kindle. Book excerpt: View the abstract.
Book Synopsis Noncommutative Homological Mirror Functor by : Cheol-Hyun Cho
Download or read book Noncommutative Homological Mirror Functor written by Cheol-Hyun Cho and published by American Mathematical Society. This book was released on 2021-09-24 with total page 116 pages. Available in PDF, EPUB and Kindle. Book excerpt: View the abstract.
Book Synopsis Existence of Unimodular Triangulations–Positive Results by : Christian Haase
Download or read book Existence of Unimodular Triangulations–Positive Results written by Christian Haase and published by American Mathematical Soc.. This book was released on 2021-07-21 with total page 83 pages. Available in PDF, EPUB and Kindle. Book excerpt: Unimodular triangulations of lattice polytopes arise in algebraic geometry, commutative algebra, integer programming and, of course, combinatorics. In this article, we review several classes of polytopes that do have unimodular triangulations and constructions that preserve their existence. We include, in particular, the first effective proof of the classical result by Knudsen-Mumford-Waterman stating that every lattice polytope has a dilation that admits a unimodular triangulation. Our proof yields an explicit (although doubly exponential) bound for the dilation factor.
Book Synopsis Uniqueness of Fat-Tailed Self-Similar Profiles to Smoluchowski?s Coagulation Equation for a Perturbation of the Constant Kernel by : Sebastian Throm
Download or read book Uniqueness of Fat-Tailed Self-Similar Profiles to Smoluchowski?s Coagulation Equation for a Perturbation of the Constant Kernel written by Sebastian Throm and published by American Mathematical Society. This book was released on 2021-09-24 with total page 106 pages. Available in PDF, EPUB and Kindle. Book excerpt: View the abstract.
Book Synopsis Instability, Index Theorem, and Exponential Trichotomy for Linear Hamiltonian PDEs by : Zhiwu Lin
Download or read book Instability, Index Theorem, and Exponential Trichotomy for Linear Hamiltonian PDEs written by Zhiwu Lin and published by American Mathematical Society. This book was released on 2022-02-02 with total page 136 pages. Available in PDF, EPUB and Kindle. Book excerpt: View the abstract.
Book Synopsis Arthur Packets for $p$-adic Groups by Way of Microlocal Vanishing Cycles of Perverse Sheaves, with Examples by : Clifton Cunningham
Download or read book Arthur Packets for $p$-adic Groups by Way of Microlocal Vanishing Cycles of Perverse Sheaves, with Examples written by Clifton Cunningham and published by American Mathematical Society. This book was released on 2022-04-08 with total page 232 pages. Available in PDF, EPUB and Kindle. Book excerpt: View the abstract.
Book Synopsis Local Dynamics of Non-Invertible Maps Near Normal Surface Singularities by : William Gignac
Download or read book Local Dynamics of Non-Invertible Maps Near Normal Surface Singularities written by William Gignac and published by American Mathematical Society. This book was released on 2021-11-16 with total page 100 pages. Available in PDF, EPUB and Kindle. Book excerpt: View the abstract.
Book Synopsis Abelian Networks IV. Dynamics of Nonhalting Networks by : Swee Hong Chan
Download or read book Abelian Networks IV. Dynamics of Nonhalting Networks written by Swee Hong Chan and published by American Mathematical Society. This book was released on 2022-04-08 with total page 104 pages. Available in PDF, EPUB and Kindle. Book excerpt: View the abstract.
Book Synopsis Goodwillie Approximations to Higher Categories by : Gijs Heuts
Download or read book Goodwillie Approximations to Higher Categories written by Gijs Heuts and published by American Mathematical Society. This book was released on 2021-11-16 with total page 108 pages. Available in PDF, EPUB and Kindle. Book excerpt: View the abstract.
Book Synopsis Non-Kissing Complexes and Tau-Tilting for Gentle Algebras by : Yann Palu
Download or read book Non-Kissing Complexes and Tau-Tilting for Gentle Algebras written by Yann Palu and published by American Mathematical Society. This book was released on 2021-12-30 with total page 95 pages. Available in PDF, EPUB and Kindle. Book excerpt: View the abstract.
Book Synopsis Spectral Expansions of Non-Self-Adjoint Generalized Laguerre Semigroups by : Pierre Patie
Download or read book Spectral Expansions of Non-Self-Adjoint Generalized Laguerre Semigroups written by Pierre Patie and published by American Mathematical Society. This book was released on 2021-11-16 with total page 182 pages. Available in PDF, EPUB and Kindle. Book excerpt: View the abstract.
