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9:38 AM
A new tag was created. IIRC, this tag was crated and removed several times in the past.
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Q: Classification of Compact Surfaces

Nicolas BourbakiIs there a rigorous proof of the classification theorem for compact (connected) two-manifolds that describe all of them up to a homeomorphism? I have seen many books and all of them use way too much hand waving. All the current proofs that I seen rely way too much on drawing pictures. Is there an...

Jan 4 at 6:09, by Martin Sleziak
Posts where the tag was added/removed (including the editors): https://data.stackexchange.com/math/query/1105163/questions-which-had-the-given-tag-including-the-editor-who-added-it?tagname=topology https://data.stackexchange.com/math/query/1038474/questions-which-no-longer-have-the-given-tag-including-the-editor?tagName=topology
 
10:28 AM
Four new tags created in the same question , , , .
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Q: Can I say this? Relation between sum on continuous set and integral

MartingaloI have a Markov process $X=\{X_t,s\geq 0\}$ with finite state space $S$. I assume that $X$ is right-continuous and has left-limits. I want to count the number of jumps from a state $i$ to a state $j$ on $[0,t]$. I can do that by defining: $$N_{ij}(t) := \sum_{0<s<t} \mathbb{I}_{\{X_{s^-}=i,X_s=j\...

 

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