37 citations · 111 across the 23 of their papers we have counts for
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math.CT2022
On Examples and Classification of Frobenius Objects in Rel
Ivan Contreras, Adele Long, Sophia Marx +1
We give some new examples of Frobenius objects in the category of sets and relations . One example is a groupoid with a twisted counit. Another example is the set of…
math-ph2022★ 1 cited
Defects via Factorization Algebras
Ivan Contreras, Chris Elliott, Owen Gwilliam
We provide a mathematical formulation of the idea of a defect for a field theory, in terms of the factorization algebra of observables and using the BV formalism. Our approach foll…
math-ph2022
Laplace and Dirac Operators on Graphs
Beata Casiday, Ivan Contreras, Thomas Meyer +2
Discrete versions of the Laplace and Dirac operators haven been studied in the context of combinatorial models of statistical mechanics and quantum field theory. In this paper we i…