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1d
comment Does it make sense to compare sets (polytopes) with different dimensions?
@QiaochuYuan - the OP means to say that a linear program $X$ gives better optimum than a linear program $Y$, and denotes this fact by $X\subseteq Y$. I already complained in my 1st comment that it's a very misleading notation.
1d
comment Does it make sense to compare sets (polytopes) with different dimensions?
@QiaochuYuan - here $\subseteq$ meant to compare quality of models, rather than anything else...
2d
comment Does it make sense to compare sets (polytopes) with different dimensions?
it's very confusing to use containment, i.e. $\subseteq$ relation, to describe your setting. Polytopes are just sets, and $A\subseteq B$ would be read as containment of sets...
Apr
22
reviewed Approve rigged-hilbert-spaces tag wiki excerpt
Apr
22
reviewed Approve eigenvector tag wiki
Apr
22
reviewed Approve arithmetic-topology tag wiki excerpt
Apr
22
answered Eigenvalues of partial Hankel matrices
Apr
22
comment Eigenvalues of partial Hankel matrices
what is "partial" about your matrices?
Apr
22
reviewed Approve morse-theory tag wiki
Apr
22
reviewed Approve morse-theory tag wiki excerpt
Apr
22
revised Several Topos theory questions
updated a dead link
Apr
22
reviewed Approve motives tag wiki excerpt
Apr
22
reviewed Approve motives tag wiki
Apr
20
revised Complexity of solving systems of linear diophantine equations
added 5 characters in body
Apr
20
comment Complexity of solving systems of linear diophantine equations
I edited the answer to indicate what you say; indeed, it's not as clear.
Apr
20
revised Complexity of solving systems of linear diophantine equations
added 410 characters in body
Apr
20
comment Complexity of solving systems of linear diophantine equations
how to compute the transformation (with a slightly worse complexity) is shown in "Asymptotically fast computation of Hermite normal forms of integer matrices" by Storjohann and Labahn: dx.doi.org/10.1145/236869.237083
Apr
20
comment Finite groups generated by 3 involutions interchanging disjoint residue classes of the integers
It's a quotient of a Coxeter group with 3 generators, in each case, right? Could you specify the order of the product of each pair of generators?
Apr
20
reviewed Approve pfaffian tag wiki excerpt
Apr
20
reviewed Approve Two similar integrals