researcher

Michael Usher

28 papers hereh-index 16897 citations42 works total

Matching runs newest-first, so older work may not be attached to this profile yet.

author position

sole author24
first author1
last author3

Across the 28 of 28 papers where every author was matched, so the position is known.

fields

math.SG25
math.AT2
math.GT1

identity via Semantic Scholar / OpenAlex

activity

20032025

most citedSpectral numbers in Floer theories

76 citations · 308 across the 22 of their papers we have counts for

collaborators

Showing 2018 · math.SGShow all

2 papers · 2 filters

math.SG2018★ 10 cited

Symplectic Banach-Mazur distances between subsets of C^n

Michael Usher

Following proposals of Ostrover and Polterovich, we introduce and study "coarse" and "fine" versions of a symplectic Banach-Mazur distance on certain open subsets of $C^{n}$ …

math.SG2018★ 12 cited

Infinite staircases in the symplectic embedding problem for four-dimensional ellipsoids into polydisks

Michael Usher

We study the symplectic embedding capacity function $C_{β}$ for ellipsoids $E (1, α) \subset R^{4}$ into dilates of polydisks $P (1, β)$ as both $α$ and $β$ vary through $[1, \infty)$ . For $…

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Not affiliated with arXiv. Researcher data from Semantic Scholar (ODC-BY) and OpenAlex.