Topological defects and generalised orbifolds ... - Nils Carqueville
Topological defects and generalised orbifolds ... - Nils Carqueville
Topological defects and generalised orbifolds ... - Nils Carqueville
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Diagrammatics in bicategories<br />
X<br />
X<br />
= 1X<br />
ϕ<br />
Y<br />
X<br />
= ϕ : X −→ Y