Is sum of two positive definite matrices positive definite and is there a

proof or a theorem that shows that?

Thank you.

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- January 2nd 2012, 08:20 AMitproIs sum of positive definite matrices positive definite
Is sum of two positive definite matrices positive definite and is there a

proof or a theorem that shows that?

Thank you. - January 2nd 2012, 08:36 AMFernandoRevillaRe: Is sum of positive definite matrices positive definite
- January 2nd 2012, 08:40 AMitproRe: Is sum of positive definite matrices positive definite
This is great, Thank you!

Is there a similar proof for products of two positive definite matrices? - January 2nd 2012, 08:42 AMAlso sprach ZarathustraRe: Is sum of positive definite matrices positive definite
- January 2nd 2012, 09:00 AMFernandoRevillaRe: Is sum of positive definite matrices positive definite