Schreiber
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This is the personal area of Urs Schreiber within the nLab.

Research

I am interested in Hilbert's sixth problem. I am working on a circle of ideas that goes by the name

• differential cohomology in a cohesive topos

See there for survey, introduction, details and further links. Expositions, talk notes and lecture notes are listed here. For a list of published articles and of preprints on the subject see at subprojects.

Teaching and seminars

Here is a list of links to lecture notes that I have prepared for various seminars or course that I organized and/or taught.

• Course on sheaves and stacks

• Journal club on (∞,1)-category theory

• Seminar on (∞,1)-categories and ∞-stacks

• Seminar on smooth loci

• Minicourse on nonabelian differential cohomology

• Seminar on derived differential geometry

• Seminar on derived critical loci

• Seminar on quantum field theory

• Course on stacks and action functionals

• Seminar on simplicial methods

• twisted smooth cohomology in string theory

• Homological Algebra - An Introduction

Editorial work

• AMS volume: Mathematical Foundations of Quantum Field and Perturbative String Theory

Organization

• Day on Higher Category Theory - July 2010

• QVEST seminar on topology and geometry - Winter 2010, Spring 2011, Summer 2011, Autumn 2011

Students

• Herman Stel, ∞-Stacks and their function algebras , master thesis (August 2010)

• Joost Nuiten, Bohrification of local nets of observables , bachelor thesis (Summer 2011)

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