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341
Answers
newest
activity
votes
41
Absolute value inequality for complex numbers
May 21 '14 at 0:40
36
Ingenuity in mathematics
Sep 29 '10 at 7:46
32
Are the following identities well known?
Oct 9 '15 at 2:54
23
On determinants formed by binomial coefficients
Sep 24 '15 at 22:41
23
Suggestions for good notation
Oct 20 '10 at 20:12
22
Changing Careers: Becoming a Professional Mathematician
Feb 11 '12 at 19:20
19
Eigenvalues of product of two symmetric matrices
Sep 2 '12 at 21:25
17
Does the matrix exponential preserve the positive-semi-definite ordering?
Jun 30 '14 at 18:58
16
Is this integral representation of $\zeta(2n+1)$ known?
Sep 17 '15 at 20:52
16
The sum of squared logarithms conjecture
May 29 '15 at 18:55
16
Determinant of sum of positive definite matrices
May 20 '11 at 5:47
14
Is the Fourier transform of $e^{-|x|^n}$ positive?
Jan 15 at 13:04
14
Silly me & Van der Waerden conjecture
Mar 3 '14 at 22:16
13
A maximal element, where Schur gives a minimal element
Oct 1 '12 at 9:27
13
Special rational numbers that appear as answers to natural questions
Sep 10 '15 at 1:33
13
How to quantify noncommutativity?
May 12 '12 at 4:48
12
Optimizing the condition number
Aug 16 '12 at 16:29
12
Eigenvectors of a particular transition matrix
Jan 30 '14 at 17:58
12
Ratio sum comparison on operators
Feb 9 '12 at 4:17
12
Arithmetic-geometric mean of positive matrices
Jul 31 '11 at 23:05
12
The determinant of the sum of normal matrices
Oct 24 '10 at 16:18
11
Is the sequence of Apéry numbers a Stieltjes moment sequence?
Aug 22 '14 at 23:39
11
Integral representation of a determinant
Jun 21 '12 at 5:26
11
Does this matrix shape have a name?
Mar 31 '13 at 20:10
11
What can an algebraic geometer do outside academia?
Aug 26 '12 at 8:39
11
Can one recognize this symmetric function?
Aug 17 '12 at 18:57
11
Is the componentwise square-root of a positive-definite matrix also pos.-def.?
Jan 20 '11 at 17:14
10
Is the Jaccard distance a distance?
Jul 3 '15 at 13:39
10
Anti-bidiagonal matrix with main anti-diagonal {1,2,3,…} and first sub-anti-diagonal {-1,-2,-3,…} has eigenvalues lambda={1,-2,3,-4,…}
Oct 27 '14 at 21:24
10
Hlawka inequality for determinants of positive definite matrices
Sep 30 '14 at 21:21
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