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Georg Lehner's user avatar
Georg Lehner's user avatar
Georg Lehner's user avatar
Georg Lehner
  • Member for 10 years, 8 months
  • Last seen more than a week ago
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About

Post-Doc at the University of Münster. My interests are in differential and algebraic geometry, higher category theory, algebraic topology, topos theory and everything related.

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Top posts

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14
You've got your head round Basic Category Theory: why look at monads next?
Nov 11, 2015
7
Examples of toposes in which the Axiom of Determinacy holds.
Dec 20, 2015
4
topic between algebra and geometry
Jul 25, 2015
3
Is the curl of a vectorfield expressable in terms of a Lie derivative?
Jan 16, 2016
3
On linear functionals
Nov 17, 2015
3
What is the point of having at least three points on every line of a projective plane?
Dec 20, 2015
3
Prove the Jacobian of a curve of genus g is a complex torus
May 15, 2016
2
Ring of "Sequences up to finitely many entries"
Oct 30, 2016
2
The surface is an open subset of a sphere
Jan 7, 2016
2
Compatibility of two definitions of the projective class group of a group ring
Nov 22, 2021

Top network posts

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31
The philosophy behind local rings
31
Category-theoretic foundations of analysis
26
The analogy between dualizable categories and compact Hausdorff spaces
25
A geometric theory of Blueprints? (Algebras over the field with one element)
25
Examples of $(\infty,1)$-topoi that are not given as sheaves on a Grothendieck topology