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Just when I thought I was out, they pull me back in
1d

reviewed  Leave Open Connection between the Hodge laplacian and the Laplace operator 
1d

comment 
Circle method on things other than the integers
What other subsets do you have in mind? 
1d

reviewed  Close Example of an infinite index subgroup of a nonamenable group whose normalizer is of nonzero finite index, and such that the Schreier graph is of subexponential growth 
1d

reviewed  Close Information geometry divergence 
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reviewed  Close How to find a matrix by its characteristic value and characteristic vectors? 
2d

reviewed  Leave Closed Beautiful constructions in algebraic topology that facilitate one's understanding of homotopy theory 
2d

reviewed  Leave Open Suppose I know $\int h(t) dt = H(t)$, is there a way to find $\int h(t)^N dt$? 
2d

reviewed  Close Gradient Estimation Using Bicubic Interpolation and Finite Differences 
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reviewed  Leave Closed Algebraic Geometry for nonmathematician 
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reviewed  Leave Open Variety of commutative semi group 
2d

comment 
$f, \hat{f} \in L^{p}\cap L^{\infty} \implies f\in B(\mathbb R)$ (algebra of Fourier Stieltjes transforms )?
My first instinct is to try and disprove this indirectly by using a Closed Graph Theorem / Open Mapping Theorem argument, similar to the known standard proof that the Fourier transform is not a surjection from $L^1({\bf R})$ onto $C_0({\bf R})$. In other words, rather than look for an explicit counterexample, try to prove that the norms don't match 
Apr 14 
reviewed  Leave Closed Books and papers on differential equation method 
Apr 13 
comment 
Is this Hankel matrix in trace class
If you are not answering Tao Mei's question, but instead are just answering your own version of the question, and if you do not know what the trace class norm is, then you should not be trying to answer this question, and this is why your "answers" are always deleted. 
Apr 13 
reviewed  Close Books and papers on differential equation method 
Apr 13 
comment 
Is this Hankel matrix in trace class
Moreover, even if you were taking the sum of the absolute values of the matrix entries (which, as I keep saying, might not be the same as the trace class norm of the matrix) then the quantity you want is $\sum_{n=1}^\infty n \Gamma_{1,n1}$, so you do not get the kind of telescoping that you have claimed in your repeated attempts to answer this question. 
Apr 13 
comment 
Is this Hankel matrix in trace class
But this still does not help to compute the traceclass norm, which is in general not just a simple function of the absolute values of the entries. See en.wikipedia.org/wiki/Trace_class 
Apr 13 
comment 
Is this Hankel matrix in trace class
You keep repeating this, despite the fact that what you write down is not the traceclass norm of the given matrix. To see why, please look up the definition of traceclass norm. 
Apr 12 
reviewed  Close Homotopy equivalent type of a knot complement 
Apr 11 
reviewed  Close Rotation orientations in ndimensions 
Apr 10 
reviewed  Leave Closed A geometric optimization problem: is this nonconvex? 