Transgression maps for crossed modules of groupoids
Keyword(s):
Given a crossed module of groupoids [Formula: see text], we construct (1) a natural homomorphism from the product groupoid [Formula: see text] to the crossed product groupoid [Formula: see text] and (2) a transgression map from the singular cohomology [Formula: see text] of the nerve of the groupoid [Formula: see text] to the singular cohomology [Formula: see text] of the nerve of the crossed product groupoid [Formula: see text]. The latter turns out to be identical to the transgression map obtained by Tu–Xu in their study of equivariant [Formula: see text]-theory.
2003 ◽
Vol 10
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pp. 99-114
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2010 ◽
Vol 10
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pp. 359-404
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2012 ◽
Vol 11
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pp. 1250096
Keyword(s):
2019 ◽
Vol 28
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pp. 1940012
2019 ◽
Vol 38
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pp. 169-179
2019 ◽
Vol 38
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pp. 181-193
2019 ◽
Vol 26
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pp. 437-447
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