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Reshetnyak's theory of subharmonic metrics

Record Type:	Language materials, printed : Monograph/item
Title/Author:	Reshetnyak's theory of subharmonic metrics/ edited by Francois Fillastre, Dmitriy Slutskiy.
other author:	Fillastre, Francois.
Published:	Cham :Springer International Publishing : : 2023.,
Description:	xviii, 376 p. :ill. (some col.), digital ; : 24 cm.;
Contained By:	Springer Nature eBook
Subject:	Subharmonic functions. -
Online resource:	https://doi.org/10.1007/978-3-031-24255-7
ISBN:	9783031242557

Reshetnyak's theory of subharmonic metrics
Reshetnyak's theory of subharmonic metrics[electronic resource] /edited by Francois Fillastre, Dmitriy Slutskiy. - Cham :Springer International Publishing :2023. - xviii, 376 p. :ill. (some col.), digital ;24 cm.

1 Yu. G. Reshetnyak, How I got involved in research on two-dimensional manifolds of bounded curvature -- 2 Marc Troyanov, On Alexandrov's surfaces with bounded integral curvature -- 3 Marc Troyanov, Riemannian surfaces with simple singularities -- 4 François Fillastre, An introduction to Reshetnyak's theory of subharmonic distances -- 5 Yu. G. Reshetnyak, Isothermal coordinates on manifolds of bounded curvature -- 6 Yu. G. Reshetnyak, Study of manifolds of bounded curvature using isothermal coordinates -- 7 Yu. G. Reshetnyak, Isothermal coordinates on manifolds of bounded curvature I -- 8 Yu. G. Reshetnyak, Isothermal coordinates on manifolds of bounded curvature II -- 9 Yu. G. Reshetnyak, On isoperimetric property of two-dimensional manifolds with curvature bounded from above by K -- 10 Yu. G. Reshetnyak, On a special mapping of a cone onto a polyhedron -- 11 Yu. G. Reshetnyak, On a special mapping of a cone in a manifold of bounded curvature -- 12 Yu. G. Reshetnyak, Arc length in manifolds of bounded curvature with an isothermal metric -- 13 Yu. G. Reshetnyak, Turn of curves in manifolds of bounded curvature with an isothermal metric -- 14 Alfred Huber, On the potential theoretic aspect of Alexandrov surface theory.

Despite the fundamental role played by Reshetnyak's work in the theory of surfaces of bounded integral curvature, the proofs of his results were only available in his original articles, written in Russian and often hard to find. This situation used to be a serious problem for experts in the field. This book provides English translations of the full set of Reshetnyak's articles on the subject. Together with the companion articles, this book provides an accessible and comprehensive reference for the subject. In turn, this book should concern any researcher (confirmed or not) interested in, or active in, the field of bounded integral curvature surfaces, or more generally interested in surface geometry and geometric analysis. Due to the analytic nature of Reshetnyak's approach, it appears that his articles are very accessible for a modern audience, comparing to the works using a more synthetic approach. These articles of Reshetnyak concern more precisely the work carried by the author following the completion of his PhD thesis, under the supervision of A.D. Alexandrov. Over the period from the 1940's to the 1960's, the Leningrad School of Geometry, developed a theory of the metric geometry of surfaces, similar to the classical theory of Riemannian surfaces, but with lower regularity, allowing greater flexibility. Let us mention A.D. Alexandrov, Y.D. Burago and V.A. Zalgaller. The types of surfaces studied by this school are now known as surfaces of bounded curvature. Particular cases are that of surfaces with curvature bounded from above or below, the study of which gained special attention after the works of M. Gromov and G. Perelman. Nowadays, these concepts have been generalized to higher dimensions, to graphs, and so on, and the study of metrics of weak regularity remains an active and challenging field. Reshetnyak developed an alternative and analytic approach to surfaces of bounded integral curvature. The underlying idea is based on the theorem of Gauss which states that every Riemannian surface is locally conformal to Euclidean space. Reshetnyak thus studied generalized metrics which are locally conformal to the Euclidean metric with conformal factor given by the logarithm of the difference between two subharmonic functions on the plane. Reshetnyak's condition appears to provide the correct regularity required to generalize classical concepts such as measure of curvature, integral geodesic curvature for curves, and so on, and in turn, to recover surfaces of bounded curvature. Chapter-No.7, Chapter-No.8, Chapter-No.12 and Chapter-No.13 are available open access under Creative Commons Attribution-NonCommercial 4.0 International License via link.springer.com.

ISBN: 9783031242557

Standard No.: 10.1007/978-3-031-24255-7doiSubjects--Topical Terms:

896693
Subharmonic functions.

LC Class. No.: QA405 / .R47 2023

Dewey Class. No.: 516.36

Reshetnyak's theory of subharmonic metrics
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520 $a Despite the fundamental role played by Reshetnyak's work in the theory of surfaces of bounded integral curvature, the proofs of his results were only available in his original articles, written in Russian and often hard to find. This situation used to be a serious problem for experts in the field. This book provides English translations of the full set of Reshetnyak's articles on the subject. Together with the companion articles, this book provides an accessible and comprehensive reference for the subject. In turn, this book should concern any researcher (confirmed or not) interested in, or active in, the field of bounded integral curvature surfaces, or more generally interested in surface geometry and geometric analysis. Due to the analytic nature of Reshetnyak's approach, it appears that his articles are very accessible for a modern audience, comparing to the works using a more synthetic approach. These articles of Reshetnyak concern more precisely the work carried by the author following the completion of his PhD thesis, under the supervision of A.D. Alexandrov. Over the period from the 1940's to the 1960's, the Leningrad School of Geometry, developed a theory of the metric geometry of surfaces, similar to the classical theory of Riemannian surfaces, but with lower regularity, allowing greater flexibility. Let us mention A.D. Alexandrov, Y.D. Burago and V.A. Zalgaller. The types of surfaces studied by this school are now known as surfaces of bounded curvature. Particular cases are that of surfaces with curvature bounded from above or below, the study of which gained special attention after the works of M. Gromov and G. Perelman. Nowadays, these concepts have been generalized to higher dimensions, to graphs, and so on, and the study of metrics of weak regularity remains an active and challenging field. Reshetnyak developed an alternative and analytic approach to surfaces of bounded integral curvature. The underlying idea is based on the theorem of Gauss which states that every Riemannian surface is locally conformal to Euclidean space. Reshetnyak thus studied generalized metrics which are locally conformal to the Euclidean metric with conformal factor given by the logarithm of the difference between two subharmonic functions on the plane. Reshetnyak's condition appears to provide the correct regularity required to generalize classical concepts such as measure of curvature, integral geodesic curvature for curves, and so on, and in turn, to recover surfaces of bounded curvature. Chapter-No.7, Chapter-No.8, Chapter-No.12 and Chapter-No.13 are available open access under Creative Commons Attribution-NonCommercial 4.0 International License via link.springer.com.
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650 2 4 $a Potential Theory. $3 672266
700 1 $a Fillastre, Francois. $3 1430616
700 1 $a Slutskiy, Dmitriy. $3 1430617
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