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11428
bio website preschema.com
location Essen, Germany
age 23
visits member for 5 years, 5 months
seen 5 hours ago

6h
comment Homotopy pullback preserving functor
@FernandoMuro, I may be missing something, but if $A$ and $B$ have the trivial model structures, then the condition of preserving fibrations and weak equivalences is vacuous, while the condition of preserving homotopy fibres is a type of left-exactness, right?
6h
comment Homotopy pullback preserving functor
@FernandoMuro, the proposition in the paper says that the functor preserves fibrations in the model structure, not fibre sequences.
8h
comment is there a moduli of stable infinity categories?
@pro, thanks! Would you mind also sharing the approximations that you found in the literature?
11h
comment is there a moduli of stable infinity categories?
@pro, would you mind explaining what you mean by infinitesimal theory here?
May
14
revised Matrix factorizations as a dg-category?
edited tags
May
13
reviewed Reject Regularity of simple ring extensions, subrings and quotients
May
13
answered How to show the following two definitions of homotopy monomorphism are equivalent?
May
13
answered A question about the morphisms in the homotopy category of dg-Cat
May
3
awarded  Custodian
Apr
28
comment Is there any explicit result on the triangulated category of singularities of a curve?
Do you know a reference for that? I only knew that fact in the smooth case.
Apr
28
comment Is there any explicit result on the triangulated category of singularities of a curve?
Just a comment: a semi-orthogonal decomposition of D^b_coh induces a semi-orthogonal decomposition of D_sg, according to Corollary 1.12 here.
Apr
27
answered Could we extend the exact sequence $K^0(X)\to K_0(X)\to K_0(D_{sg}(X))\to 0$ to the left?
Apr
22
comment Are Bökstedt's THH manuscripts available?
I could e-mail them to you.
Apr
16
answered Does a fully faithful functor between triangulated categories induce embedding of their Grothendieck groups?
Apr
9
comment Algebraic K-theory of complex varieties
Analytic descent for K-theory would follow directly from analytic descent for perfect complexes. I have no idea whether the latter is true, though.
Apr
6
comment Integral transform on noncommutative spaces
@bananastack, I learned this from Marco Robalo's thesis, but it is probably in some paper of To\"en.
Apr
6
comment How does one compute a colimit of monoidal categories?
I believe non-strict monoidal categories can be described as algebras over a monad which is a cofibrant replacement of the monad presenting strict monoidal categories. So a similar statement should hold.
Apr
6
comment Integral transform on noncommutative spaces
@bananastack, saturated dg-categories also come from dg-algebras, by the way (from dg-algebras of finite type, even).
Apr
6
revised Integral transform on noncommutative spaces
minor correction
Apr
6
revised Integral transform on noncommutative spaces
deleted 17 characters in body