researcher

R. Kaufmann

51 papers hereh-index 181.2k citations74 works total

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

author position

sole author20
first author24
middle author4
last author3

Across the 51 of 51 papers where every author was matched, so the position is known.

fields

math.AT18
math.AG11
math-ph10
math.QA4
hep-th2
math.CT2

same name

R. Kaufmann — 1 paper, h 3
R. Kaufmann — 1 paper, h 0
R. Kaufmann — 1 paper, h 25
R. Kaufmann — 1 paper, h 6

Either other researchers who publish under this name, or the same person where the external sources have not merged their records.

identity via Semantic Scholar / OpenAlex

activity

19942022

most citedArc Operads and Arc Algebras

45 citations · 402 across the 46 of their papers we have counts for

collaborators

Showing 2016 · math-phShow all

2 papers · 2 filters

math-ph2016★ 1 cited

Noncommutative topological $Z_{2}$ invariant

Ralph M. Kaufmann, Dan Li, Birgit Wehefritz-Kaufmann

We generalize the $Z_{2}$ invariant of topological insulators using noncommutative differential geometry in two different ways. First, we model Majorana zero modes by KQ-cyc…

math-ph2016★ 5 cited

The Stiefel--Whitney theory of topological insulators

Ralph M. Kaufmann, Dan Li, Birgit Wehefritz-Kaufmann

We study the topological band theory of time reversal invariant topological insulators and interpret the topological $Z_{2}$ invariant as an obstruction in terms of Stiefel-…

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

Noncommutative topological Z2​ invariant

The Stiefel--Whitney theory of topological insulators

Noncommutative topological $Z_{2}$ invariant