Sobolev Spaces on Metric Measure Spaces (Hardcover) (ISBN-13: 9781107092341)

Analysis on metric spaces emerged in the 1990s as an independent research field providing a unified treatment of first-order analysis in diverse and potentially nonsmooth settings. Based on the fundamental concept of upper gradient, the notion of a Sobolev function was formulated in the setting of metric measure spaces supporting a Poincaré inequality. This coherent treatment from first principles is an ideal introduction to the subject for graduate students and a useful reference for experts. It presents the foundations of the theory of such first-order Sobolev spaces, then explores geometric implications of the critical Poincaré inequality, and indicates numerous examples of spaces satisfying this axiom. A distinguishing feature of the book is its focus on vector-valued Sobolev spaces. The final chapters include proofs of several landmark theorems, including Cheeger's stability theorem for Poincaré inequalities under Gromov-Hausdorff convergence, and the Keith-Zhong self-improvement theorem for Poincaré inequalities.

Author: Juha Heinonen,Pekka Koskela,Nageswari Shanmugalingam
ISBN-10: 1107092345
ISBN-13: 9781107092341
Publisher: Cambridge University Press
Language: English
Published: 02/05/2015
Pages: 448
Format: Hardcover
Weight: 1.82lbs
Size: 9.00h x 6.00w x 1.13d