Group Extensions and Principal Fibrations.
نویسندگان
چکیده
منابع مشابه
Groupoid extensions, principal 2-group bundles and characteristic classes
We give an explicit description of a 1-1 correspondence between Morita equivalence classes of, on the one hand, principal 2-group [G → Aut(G)]bundles over Lie groupoids (i.e. [G → Aut(G)]-bundles over differentiable stacks) and, on the other hand, centralG-extensions of Lie groupoids (i.e. Ggerbes over differentiable stacks). We also introduce universal characteristic classes for 2-group bundle...
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To my father iii ACKNOWLEDGEMENTS My journey through the PhD program has been a long one, taking me from robotics, to computer vision, to machine learning, and finally to theory. Making so many transitions slowed my graduation, no doubt, but it also allowed me to work with leaders across several research fields and has given me a better perspective on the The most important man in my PhD career...
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ژورنال
عنوان ژورنال: MATHEMATICA SCANDINAVICA
سال: 1972
ISSN: 1903-1807,0025-5521
DOI: 10.7146/math.scand.a-11078