4 search results - page 1 / 1 » A Condition for Convexity of a Product of Positive Definite ... |
SIAMMAX
2011
12 years 8 months ago
2011
A sufficient condition for the convexity of a finite product of positive definite quadratic forms is given in terms of the condition numbers of the underlying matrices. When only...
SIAMMAX
2010
13 years 12 hour ago
2010
It is well-known that the Legendre-Fenchel conjugate of a positive definite quadratic form can be explicitly expressed as another positive definite quadratic form, and that the con...
ICML
2010
IEEE
13 years 6 months ago
2010
IEEE
We present multi-task structure learning for Gaussian graphical models. We discuss uniqueness and boundedness of the optimal solution of the maximization problem. A block coordina...
MCS
2008
Springer
13 years 5 months ago
2008
Springer
In the stability study of nonlinear systems, not to found feasible solution for the LMI problem associated with a quadratic Lyapunov function shows that it doesn't exist posi...