3,042 reputation
420
bio website
location
age
visits member for 1 year, 9 months
seen 7 hours ago

Indian Institute of Science


Jul
7
accepted Pick coloured balls from given urns
Jul
4
asked Pick coloured balls from given urns
Jul
2
awarded  Curious
Jul
2
awarded  Inquisitive
Jun
6
comment Prove $|\det A| \leq \prod_{j=1}^n ||a_j||$
I am curious. When you say "Mr Hadamard says that", did you mean that he used this particular proof for the inequality?
May
23
accepted Is this function inequality true?
May
23
accepted choosing the function of a random variable with the lowest variance w.r.t.o the mean of that random variable?
May
23
accepted More difficult Integral
May
20
revised Direct Sum of $R(A)$ and $\ker(A)$, when $A^2=A$
Changed title, latexified
May
20
answered Regular matrix and regular stochastic matrix
May
15
accepted How to prove “rank is not less than the number of non-zero eigenvalues”?
May
15
comment How to prove “rank is not less than the number of non-zero eigenvalues”?
nice!!, I just wanted to press that it was not a HW problem,which is why first statement was there!! :):).
May
15
asked How to prove “rank is not less than the number of non-zero eigenvalues”?
May
13
answered finding an orthogonal subspace to $span\{(i,0,1)\}$
Apr
28
awarded  Notable Question
Apr
25
answered Rank of $I_n + M$ where M is skew-symmetric?
Apr
25
comment Matrix graph and irreducibility
I don't know to prove it, but I think you might find the proof in "Combinatorial Matrix Theory" of Brualdi
Apr
25
answered Rows of orthogonal matrix from an orthonormal basis of $R^n$
Apr
25
revised An inequality on trace of product of two matrices
added 2 characters in body
Apr
11
accepted Dual of a Semi Definite Programming Problem