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Alex Gavrilov's user avatar
Alex Gavrilov's user avatar
Alex Gavrilov
  • Member for 14 years, 2 months
  • Last seen this week
  • Russia
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answered
Square root of a large sparse symmetric positive definite matrix
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On Mathematical Analysis of MathSciNet & MathOverflow
Taking a look at this interesting article, generalist journals are heavily "biased" towards pure mathematics at the expense of applied one. If you ask me, this is exactly how it should be.
comment
Characterizing specific "concrete" mathematical objects by abstract general properties
Oops, sorry, I am 5 years late.
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Characterizing specific "concrete" mathematical objects by abstract general properties
@ Wouter Stekelenburg. This is discussed at some length in an interesting paper, "Real Analysis in Reverse" by James Propp. In such fields, $1/n$ does not converge to zero.
accepted
A bound for the number of moduli of a surface?
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A bound for the number of moduli of a surface?
Will you write it as an answer? (So I can accept it and the question won't be left "unanswered" like last time.)
revised
A bound for the number of moduli of a surface?
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asked
A bound for the number of moduli of a surface?
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Bounding an elliptic-type integral
I agree. (Also, I did not answer the last question.)
answered
Bounding an elliptic-type integral
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The geometric meaning of the sign in the functional equation
This question does not need an answer anymore. Do I need to write an answer myself or to do something else so it won't be flagged as "unanswered"?
revised
The geometric meaning of the sign in the functional equation
added 263 characters in body
revised
The geometric meaning of the sign in the functional equation
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The geometric meaning of the sign in the functional equation
If I got it right, it simply means that $-q^{d/2}$ has even (maybe zero) multiplicity.
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The geometric meaning of the sign in the functional equation
Thank you. But I am still curious if it is not the same. If I am not mistaken, it would be so if the whole dimension of $H^d(X)$ always has the same parity as $N$. Do you know a counterexample?
asked
The geometric meaning of the sign in the functional equation
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k-th Pontryagin class of $\Lambda^{2k}_{\pm}$ on an oriented $4k$-manifold
I think it would be more interesting if this is not computable in terms of Pontryagin classes.
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Abhyankar-Moh embedding theorem without algebraic closedness
Honestly, I can't think of any.
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Abhyankar-Moh embedding theorem without algebraic closedness
No, the fraction field is the same: if $x=t^2$ and $y=t+t^3$ then $t=y/(x+1)$.
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Abhyankar-Moh embedding theorem without algebraic closedness
Let us continue this discussion in chat.
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