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Ronnie Brown
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Descent theorems for fundamental groups and groupoids?
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Compelling evidence that two basepoints are better than one
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Compelling evidence that two basepoints are better than one
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Compelling evidence that two basepoints are better than one
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Crossed module classification theorem and $H^3(G; A)$
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Examples of categorification
Relevant to this is . arXiv:1207.6404 "Groupoids and Faa di Bruno formulae for Green functions in bialgebras of trees" Imma Galvez-Carrillo, Joachim Kock, Andrew Tonks
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Crossed module classification theorem and $H^3(G; A)$
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Compelling evidence that two basepoints are better than one
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Cubical vs. simplicial singular homology
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Cubical vs. simplicial singular homology
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Cubical vs. simplicial singular homology
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Covering space theory, category theory
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Relationship between $H_*(X, A)$ and $H_*(Y \cup_f X, Y)$? $\pi_*(X, A)$ and $\pi_*(Y \cup_f X, Y)$?
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Relationship between $H_*(X, A)$ and $H_*(Y \cup_f X, Y)$? $\pi_*(X, A)$ and $\pi_*(Y \cup_f X, Y)$?
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Compelling evidence that two basepoints are better than one
@Ryan I just mention that looking at groupoids led me to higher homotopy Seifert-van Kampen Theorems and that led eventually to
nonabelian tensor products of groups
of which the bibiliography on my web page has 131 items, the majority by group theorists: see
pages.bangor.ac.uk/~mas010/nonabtens.html
.
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