Urs Schreiber

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Name Urs Schreiber
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I am a postdoc in maths with a degree in theoretical physics. I am interested in mathematical structures in quantum field theory and string theory, see here.
19

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Pull-push in Godin’s HCFT for string topology

jun 6 11 at 14:06 Urs Schreiber 6,439●13●21

 
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Singular chains as an HZ-module spectrum

jun 7 11 at 18:10 Urs Schreiber 6,439●13●21

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cosimplicial algebras to dg-algebras

nov 18 09 at 17:06 Denis-Charles Cisinski 4,898●11●20

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Relation between dendroidal and opetopic sets

nov 18 09 at 6:50 Tom Leinster 13.5k●1●40●82

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95

Answers
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38
“Philosophical” meaning of the Yoneda Lemma
25
What is an $(\infty,1)$-topos, and why is this a good setting for doing differential geometry? (2)
24
Lawvere’s “Some thoughts on the future of category theory.”
21
What is a topos? (2)
19
What is a cohomology theory (seriously)?
18
What is DAG and what has it to do with the ideas of Voevodsky?
17
equivalence of Grothendieck-style versus Cech-style sheaf cohomology
14
Algebraic description of compact smooth manifolds?
14
Forcing in Homotopy Type Theory
13
triangulated vs. dg/A-infinity (3)
12
Intuitionistic logic as quantization of classical logic?
10
Lie $2$-groups and differential equations
10
What category without initial object do you care about?
9
What is the relationship between algebraic geometry and quantum mechanics?
9
How to understand Chern-Simons action
8
Second nonabelian group cohomology: cocycles vs. gerbes
8
The Chern-Simons/Wess-Zumino-Witten correspondence (2)
8
Simplicial objects
8
What’s after natural transformations?
8
Book on Hochschild (co)homology
8
de Rham cohomology and flat vector bundles
8
Simplicial homotopy book suggestion for HTT computations
7
Abstract Relation between Presehaves and Simplicial Sets
7
How to introduce Kahler differential in category?
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What is the “right” definition of a ring?
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Why is homology not (co)representable?
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Representing cohomology of a sheaf à la Eilenberg-Maclane
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Is there any generalization of the Dold-Kan correspondence?
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Generalized geometry
6
How are infinite-dimensional manifolds most commonly treated?
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