James Davidoff
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 May 19 awarded Popular Question Sep 24 awarded Autobiographer Jul 2 awarded Curious Jun 25 awarded Citizen Patrol Nov 24 awarded Popular Question Aug 11 awarded Yearling Mar 15 awarded Nice Question Dec 3 accepted When are non-quasi-coherent sheaves used? Nov 2 asked When are non-quasi-coherent sheaves used? Oct 27 asked What are some open problems in toric varieties? Oct 27 comment two sequences whose difference converges to zero $A_n$ and $B_n$ are "asymptotically equal" - proofwiki.org/wiki/Definition:Asymptotically_Equal Oct 11 comment Secondary fans and Stanley Reisner ideals It's apparently a bug in chrome for Linux. Do you happen to know of an algorithm to explicitly compute all coherent triangulations of a set $S$? Oct 3 accepted Secondary fans and Stanley Reisner ideals Oct 3 comment Secondary fans and Stanley Reisner ideals Thanks David! The codimension one problem has been throwing me for awhile. Something's wrong with the display of your first equation though; it should be $$\tilde{f}(w) = \max \{ \sum a_i f(s_i) : \ \sum a_i s_i = w,\ a_i \geq 0 \}.$$ Oct 1 revised Secondary fans and Stanley Reisner ideals fixed grammar Oct 1 comment Singular locus of a homogeneous polynomial. This question has been re-posed and answered: mathoverflow.net/questions/40672/… Sep 30 accepted Constructing affine hypersurfaces with one singularity Sep 30 comment Constructing affine hypersurfaces with one singularity @mdeland: I understand that they are equivalent. I don't understand how this answers my question; you've just rephrased it to "what are conditions on $S$ and/or $H$ such that the weighted projective space is smooth". Having coprime weights that divide the degree is not enough: I can assign degree 2 to $x$ and 1 to $y$ in example 1, and $2|6$, but the singular locus of $x^3$ is not the origin. Sep 30 comment Constructing affine hypersurfaces with one singularity @mdeland; I want to know when the affine hypersurface has such a singularity. I hope I made that clear this time in my question. Sep 30 asked Constructing affine hypersurfaces with one singularity