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visits | member for | 4 years, 8 months |
seen | Jan 18 at 23:41 | |
stats | profile views | 118 |
Apr 26 |
awarded | Yearling |
Dec 17 |
comment |
Is every finite group a group of “symmetries”?
@Andrew: I am also sure I have seen a proof that every finite group is a group of automorphisms of a Riemann surface, actually in the context of the Inverse Galois Problem, but the only reference for something quite close that I could find now is: L. Greenberg, Conformal transformations of Riemann surfaces. Amer. J. Math. 82 1960 749–760. |
May 24 |
answered | Complete D.V.R's That have different characteristic than the residue field |
Jan 16 |
awarded | Nice Question |
Aug 9 |
answered | Milne, Etale Cohomology, mistake in proposition 2.5? |
Jun 12 |
answered | books (or notes) on complex multiplication |
Feb 24 |
awarded | Popular Question |
Apr 29 |
answered | Character free proof that Frobenius kernel is a normal subgroup? |
Apr 13 |
awarded | Supporter |
Apr 13 |
comment |
Examples of theorems misapplied to non-mathematical contexts
Perhaps it was my being ignorant of algebraic topology as a kid, but splitting my sandwich with my brother did not seem to be fair! |
Mar 9 |
comment |
Never appeared forthcoming papers
I recalled Robert Thomason citing the various preprints of his paper "Algebraic K-theory and etale cohomology" as "to disappear" We are all glad that the paper finally appeared in Ann. Sci. Ecole Norm. Sup. (1985). |
Mar 21 |
answered | Famous mathematical quotes |
Mar 21 |
answered | “Homotopy-first” courses in algebraic topology |
Mar 19 |
awarded | Teacher |
Mar 11 |
answered | Books you would like to see translated into English. |
Feb 9 |
answered | An algebraic proof of Mumford's smoothness criterion for surfaces? |
Feb 9 |
comment |
Mittag-Leffler condition: what's the origin of its name?
Thanks Yemon. I followed your suggestion and took a look at Runde's (Appendix A) and the "abstract" Bourbaki's M-L version for a sequence of complete metric spaces and continuous funcions $f_n:X_n\rightarrow X_{n-1}$ with dense image. It looks that this can be further abstracted to the "algebraic" M-L. I'll do the details later on to see if this is the case. By the way, Runde quotes Bourbaki's "General Topology" volume. I don't have access to that one right now but I'll check it tomorrow. Thanks again. |
Feb 9 |
awarded | Student |
Feb 9 |
asked | Mittag-Leffler condition: what's the origin of its name? |