TY - BOOK

T1 - Sobolev spaces on metric measure spaces

T2 - An approach based on upper gradients

AU - Heinonen, Juha

AU - Koskela, Pekka

AU - Shanmugalingam, Nageswari

AU - Tyson, Jeremy T.

PY - 2015/1/1

Y1 - 2015/1/1

N2 - 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.

AB - 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.

UR - http://www.scopus.com/inward/record.url?scp=84952905063&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84952905063&partnerID=8YFLogxK

U2 - 10.1017/CBO9781316135914

DO - 10.1017/CBO9781316135914

M3 - Book

AN - SCOPUS:84952905063

SN - 9781107092341

BT - Sobolev spaces on metric measure spaces

PB - Cambridge University Press

ER -