bio | website | math.sunysb.edu/~vpingli |
---|---|---|
location | ||
age | ||
visits | member for | 5 years, 3 months |
seen | 9 hours ago | |
stats | profile views | 942 |
Graduate student at SUNY stony brook (5th year PhD student).
May 19 |
awarded | Nice Question |
Mar 9 |
accepted | Convexity of a (non-symmetric) function of matrices |
Mar 9 |
comment |
Convexity of a (non-symmetric) function of matrices
Yes. I forgot to add the assumption of semidefiniteness. |
Mar 9 |
revised |
Convexity of a (non-symmetric) function of matrices
Added the hypothesis of semidefiniteness. |
Mar 9 |
asked | Convexity of a (non-symmetric) function of matrices |
Feb 25 |
accepted | Matrix-convexity of inverse of the cofactor matrix |
Feb 16 |
comment |
Matrix-convexity of inverse of the cofactor matrix
Thanks. It arose in proving uniform estimates for an elliptic Monge-Ampere type PDE. |
Feb 13 |
comment |
Matrix-convexity of inverse of the cofactor matrix
Indeed. I corrected that. |
Feb 13 |
revised |
Matrix-convexity of inverse of the cofactor matrix
added 5 characters in body |
Feb 13 |
asked | Matrix-convexity of inverse of the cofactor matrix |
Feb 9 |
awarded | Yearling |
Feb 9 |
accepted | Convexity of a function of matrices |
Feb 9 |
asked | Convexity of a function of matrices |
Feb 9 |
accepted | Geometric mean of two matrices |
Feb 7 |
comment |
Geometric mean of two matrices
Thank you. Unfortunately, case 1 is the more problematic one of the two. This is because $K \neq 0$ cannot be $\leq 0$ (its trace is $0$). |
Feb 5 |
asked | Geometric mean of two matrices |
Nov 22 |
comment |
$L^p$ stability of the Beltrami equation
Thank you very much. |
Nov 22 |
accepted | $L^p$ stability of the Beltrami equation |
Nov 21 |
comment |
$L^p$ stability of the Beltrami equation
Fair enough. Indeed I want them to be uniformly quasiconformal. In fact, stronger than that. |
Nov 21 |
revised |
$L^p$ stability of the Beltrami equation
Added an assumption and normalised the quasiconformal maps. |