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Contact forms with large systolic ratio in dimension three

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Author(s):
Abbondandolo, Alberto ; Bramham, Barney ; Hryniewicz, Umberto L. ; Salomao, Pedro A. S.
Total Authors: 4
Document type: Journal article
Source: ANNALI DELLA SCUOLA NORMALE SUPERIORE DI PISA-CLASSE DI SCIENZE; v. 19, n. 4, p. 22-pg., 2019-01-01.
Abstract

The systolic ratio of a contact form on a closed three-manifold is the quotient of the square of the shortest period of closed Reeb orbits by the contact volume. We show that every co-orientable contact structure on any closed three-manifold is defined by a contact form with arbitrarily large systolic ratio. This shows that the many existing systolic inequalities in Finsler and Riemannian geometry are not purely contact-topological phenomena. (AU)

FAPESP's process: 16/25053-8 - Dynamics and geometry in low dimensions
Grantee:André Salles de Carvalho
Support Opportunities: Research Projects - Thematic Grants