Radon Transforms and the Rigidity of the Grassmannians AM 156 1st Edition by Jacques Gasqui,Hubert Goldschmidt ISBN 1400826179 9781400826179

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Product details:

ISBN 10: 1400826179  

ISBN 13: 9781400826179

Author: Jacques Gasqui; Hubert Goldschmidt

This book provides the first unified examination of the relationship between Radon transforms on symmetric spaces of compact type and the infinitesimal versions of two fundamental rigidity problems in Riemannian geometry. Its primary focus is the spectral rigidity problem: Can the metric of a given Riemannian symmetric space of compact type be characterized by means of the spectrum of its Laplacian? It also addresses a question rooted in the Blaschke problem: Is a Riemannian metric on a projective space whose geodesics are all closed and of the same length isometric to the canonical metric? The authors comprehensively treat the results concerning Radon transforms and the infinitesimal versions of these two problems. Their main result implies that most Grassmannians are spectrally rigid to the first order. This is particularly important, for there are still few isospectrality results for positively curved spaces and these are the first such results for symmetric spaces of compact type of rank ›1. The authors exploit the theory of overdetermined partial differential equations and harmonic analysis on symmetric spaces to provide criteria for infinitesimal rigidity that apply to a large class of spaces. A substantial amount of basic material about Riemannian geometry, symmetric spaces, and Radon transforms is included in a clear and elegant presentation that will be useful to researchers and advanced students in differential geometry.

Table of contents:

Frontmatter
TABLE OF CONTENTS
INTRODUCTION
Chapter I. Symmetric Spaces and Einstein Manifolds
Chapter II. Radon Transforms on Symmetric Spaces
Chapter III. Symmetric Spaces of Rank One
Chapter IV. The Real Grassmannians
Chapter V. The Complex Quadric
Chapter VI. The Rigidity of the Complex Quadric
Chapter VII. The Rigidity of the Real Grassmannians
Chapter VIII. The Complex Grassmannians
Chapter IX. The Rigidity of the Complex Grassmannians
Chapter X. Products of Symmetric Spaces
References
Index

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Tags: Jacques Gasqui, Hubert Goldschmidt, Radon Transforms, Rigidity, Grassmannians