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awarded  Teacher
1d
answered Convex cone question.
Apr
12
awarded  Commentator
Apr
12
comment A question for pointed cones
Is there anybody here?
Apr
11
revised A question for pointed cones
added 98 characters in body
Apr
11
asked A question for pointed cones
Apr
4
comment Three theorems for Polyhedra, Polytopes, and Cones
I had this book but cannot find where the three theorems lie on. Could you show me how to find it?
Apr
3
comment Three theorems for Polyhedra, Polytopes, and Cones
The book followed by your link has lots of blank pages. I couldn't get any positive thing.
Apr
3
asked Three theorems for Polyhedra, Polytopes, and Cones
Apr
3
awarded  Tumbleweed
Apr
2
awarded  Supporter
Apr
1
asked A question for epigraph and affine function
Apr
1
comment A question for matrix in linear algebra
I think $I \in \mathbb R^{k \times k}$ and $0 \in \mathbb R^{(n-k) \times k}$. Is that true?
Apr
1
awarded  Student
Apr
1
comment A question for matrix in linear algebra
Thank you @Brad S. Do you mean that $A_1 \in \mathbb R^{k \times n}$ and $A_2 \in \mathbb R^{(n-k) \times n}$. What are sizes of $I$ and $0$ matrices?
Apr
1
accepted A question for matrix in linear algebra
Apr
1
asked A question for matrix in linear algebra
Mar
30
comment Convergence of the series of functions
Thank you @David Mitra. I got it. Your explanation is very nice.
Mar
30
comment Convergence of the series of functions
@chubakueno follow your hint I just get an inequality like $|a-b| \le a, a,b>0$. This inequality is true iff $b \le 2a.$ It doesn't make the problem to be easier. I think.
Mar
30
asked Convergence of the series of functions