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Algebraic varieties, stacks, sheaves, schemes, moduli spaces, complex geometry, quantum cohomology.
3
votes
1
answer
124
views
Continuous sections of the morphism ${GL}_{n}(A) \to {GL}_{n}(A/I)$, where A is a topologica...
For which topological rings $A$ does there exist a continuous section (as a set map at least) of the quotient morphism $GL_n(A) \to GL_n(A/I)$, where $I$ denotes a nilpotent ideal in $A$?
It should …
6
votes
1
answer
356
views
Applications of lax 2-limits which are not pseudo 2-limits
One application of pseudo 2-limits (bilimits) in algebraic geometry is already found in the definition itself of stacks with values in a 2-category admitting bilimits (i.e. a discrete 1-cell-contravar …