, Volume 7, Issue 2, pp 167-233
Date: 17 Nov 2012

An introduction to the Ribe program

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We survey problems, results, ideas, and recent progress in the Ribe program. The goal of this research program, which is motivated by a classical rigidity theorem of Martin Ribe, is to obtain structural results for metric spaces that are inspired by the local theory of Banach spaces. We also present examples of applications of the Ribe program to several areas, including group theory, theoretical computer science, and probability theory.

Communicated by: Yasuyuki Kawahigashi
This article is based on the 10th Takagi Lectures that the author delivered at Research Institute for Mathematical Sciences, Kyoto University on May 26, 2012.
Joram Lindenstrauss, who was my Ph.D. advisor, passed away on April 29, 2012. He was an enormously influential mathematician and the founder of the field of research that is surveyed here. This article is dedicated to his memory.