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Sheaves on Graphs, Their Homological Invariants, and a Proof of the Hanna Neumann Conjecture

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Sheaves on Graphs, Their Homological Invariants, and a Proof of the Hanna Neumann Conjecture Synopsis

In this paper the author establishes some foundations regarding sheaves of vector spaces on graphs and their invariants, such as homology groups and their limits. He then uses these ideas to prove the Hanna Neumann Conjecture of the 1950s; in fact, he proves a strengthened form of the conjecture.

About This Edition

ISBN: 9781470419684
Publication date:
Author: Friedman, Joel
Publisher: American Mathematical Society
Format: Ebook