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Results tagged with reference-request
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user 46104
This tag is used if a reference is needed in a paper or textbook on a specific result.
4
votes
Asymptotics for the number of abelian groups of order at most $x.$
According to http://mathworld.wolfram.com/AbelianGroup.html it is a theorem of Srinivasan (1973), click on the link for details.
- 1,054
2
votes
Accepted
Is each rationally chain connected surface rational?
By the comments of abx you only need an answer to question $3$. You get easily an answer if you assume the results in the classical book of Beauville on algebraic surfaces.
Namely, if $S$ is uniruled …
- 1,054
2
votes
Fundamental group of a compact branched cover
Ciao Francesco.
The more general version of this Theorem that I know is in
Fox, Ralph H.
Covering spaces with singularities 1957 A symposium in honor of S. Lefschetz pp. 243–257 Princeton University …
- 1,054