Non-Divergence Equations Structured on Hormander Vector Fields: Heat Kernels and Harnack Inequalities PDF Download
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Author: Marco Bramanti
Publisher: American Mathematical Soc.
ISBN: 0821849034
Category : Differential inequalities
Languages : en
Pages : 136
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Book Description
"March 2010, Volume 204, number 961 (end of volume)."
Author: Marco Bramanti
Publisher: American Mathematical Soc.
ISBN: 0821849034
Category : Differential inequalities
Languages : en
Pages : 136
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Book Description
"March 2010, Volume 204, number 961 (end of volume)."
Author:
Publisher: American Mathematical Soc.
ISBN: 0821867024
Category : Mathematics
Languages : en
Pages : 136
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Book Description
"March 2010, Volume 204, number 961 (end of volume)."
Author: Marco Bramanti
Publisher: Springer Science & Business Media
ISBN: 3319020870
Category : Mathematics
Languages : en
Pages : 150
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Book Description
Hörmander's operators are an important class of linear elliptic-parabolic degenerate partial differential operators with smooth coefficients, which have been intensively studied since the late 1960s and are still an active field of research. This text provides the reader with a general overview of the field, with its motivations and problems, some of its fundamental results, and some recent lines of development.
Author: Marco Bramanti
Publisher: American Mathematical Soc.
ISBN: 1470425599
Category : Differential operators
Languages : en
Pages : 79
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Book Description
The authors consider operators of the form in a bounded domain of where are nonsmooth Hörmander's vector fields of step such that the highest order commutators are only Hölder continuous. Applying Levi's parametrix method the authors construct a local fundamental solution for and provide growth estimates for and its first derivatives with respect to the vector fields. Requiring the existence of one more derivative of the coefficients the authors prove that also possesses second derivatives, and they deduce the local solvability of , constructing, by means of , a solution to with Hölder continuous . The authors also prove estimates on this solution.
Author: Matthew J. Gursky
Publisher: Springer Science & Business Media
ISBN: 3642016731
Category : Mathematics
Languages : en
Pages : 296
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Book Description
This volume contains lecture notes on key topics in geometric analysis, a growing mathematical subject which uses analytical techniques, mostly of partial differential equations, to treat problems in differential geometry and mathematical physics.
Author: Giovanna Citti
Publisher: Springer
ISBN: 3319026666
Category : Mathematics
Languages : en
Pages : 373
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Book Description
The analysis of PDEs is a prominent discipline in mathematics research, both in terms of its theoretical aspects and its relevance in applications. In recent years, the geometric properties of linear and nonlinear second order PDEs of elliptic and parabolic type have been extensively studied by many outstanding researchers. This book collects contributions from a selected group of leading experts who took part in the INdAM meeting "Geometric methods in PDEs", on the occasion of the 70th birthday of Ermanno Lanconelli. They describe a number of new achievements and/or the state of the art in their discipline of research, providing readers an overview of recent progress and future research trends in PDEs. In particular, the volume collects significant results for sub-elliptic equations, potential theory and diffusion equations, with an emphasis on comparing different methodologies and on their implications for theory and applications.
Author: Julio Delgado
Publisher: Springer
ISBN: 3030056570
Category : Mathematics
Languages : en
Pages : 269
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Book Description
This volume presents current trends in analysis and partial differential equations from researchers in developing countries. The fruit of the project 'Analysis in Developing Countries', whose aim was to bring together researchers from around the world, the volume also includes some contributions from researchers from developed countries. Focusing on topics in analysis related to partial differential equations, this volume contains selected contributions from the activities of the project at Imperial College London, namely the conference on Analysis and Partial Differential Equations held in September 2016 and the subsequent Official Development Assistance Week held in November 2016. Topics represented include Fourier analysis, pseudo-differential operators, integral equations, as well as related topics from numerical analysis and bifurcation theory, and the countries represented range from Burkina Faso and Ghana to Armenia, Kyrgyzstan and Tajikistan, including contributions from Brazil, Colombia and Cuba, as well as India and China. Suitable for postgraduate students and beyond, this volume offers the reader a broader, global perspective of contemporary research in analysis.
Author: Klaus Thomsen
Publisher: American Mathematical Soc.
ISBN: 0821846922
Category : Mathematics
Languages : en
Pages : 138
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Book Description
The author unifies various constructions of $C^*$-algebras from dynamical systems, specifically, the dimension group construction of Krieger for shift spaces, the corresponding constructions of Wagoner and Boyle, Fiebig and Fiebig for countable state Markov shifts and one-sided shift spaces, respectively, and the constructions of Ruelle and Putnam for Smale spaces. The general setup is used to analyze the structure of the $C^*$-algebras arising from the homoclinic and heteroclinic equivalence relations in expansive dynamical systems, in particular, expansive group endomorphisms and automorphisms and generalized 1-solenoids. For these dynamical systems it is shown that the $C^*$-algebras are inductive limits of homogeneous or sub-homogeneous algebras with one-dimensional spectra.
Author: Jun Kigami
Publisher: American Mathematical Soc.
ISBN: 082185299X
Category : Mathematics
Languages : en
Pages : 145
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Book Description
Assume that there is some analytic structure, a differential equation or a stochastic process for example, on a metric space. To describe asymptotic behaviors of analytic objects, the original metric of the space may not be the best one. Every now and then one can construct a better metric which is somehow ``intrinsic'' with respect to the analytic structure and under which asymptotic behaviors of the analytic objects have nice expressions. The problem is when and how one can find such a metric. In this paper, the author considers the above problem in the case of stochastic processes associated with Dirichlet forms derived from resistance forms. The author's main concerns are the following two problems: (I) When and how to find a metric which is suitable for describing asymptotic behaviors of the heat kernels associated with such processes. (II) What kind of requirement for jumps of a process is necessary to ensure good asymptotic behaviors of the heat kernels associated with such processes.
Author: Brian Street
Publisher: Walter de Gruyter GmbH & Co KG
ISBN: 3111085643
Category : Mathematics
Languages : en
Pages : 768
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Book Description
Maximally subelliptic partial differential equations (PDEs) are a far-reaching generalization of elliptic PDEs. Elliptic PDEs hold a special place: sharp results are known for general linear and even fully nonlinear elliptic PDEs. Over the past half-century, important results for elliptic PDEs have been generalized to maximally subelliptic PDEs. This text presents this theory and generalizes the sharp, interior regularity theory for general linear and fully nonlinear elliptic PDEs to the maximally subelliptic setting.
