Take the 2-minute tour ×
MathOverflow is a question and answer site for professional mathematicians. It's 100% free, no registration required.

If you have a second order elliptic equation but the coefficients of the second order terms only form a nonnegative (instead of positive definite) matrix, then, do you know if there is any literature about this? (For example, the matrix of the second order terms can be diag{1,1,0,0} )

share|improve this question
do you mean positive semi-definite –  tergi Jul 11 '12 at 16:05
add comment

closed as off-topic by Ricardo Andrade, Theo Johnson-Freyd, Andrey Rekalo, Willie Wong, Stefan Kohl Nov 27 '13 at 11:01

This question appears to be off-topic. The users who voted to close gave this specific reason:

  • "This question does not appear to be about research level mathematics within the scope defined in the help center." – Ricardo Andrade, Andrey Rekalo, Willie Wong, Stefan Kohl
If this question can be reworded to fit the rules in the help center, please edit the question.

1 Answer

Not the answer you're looking for? Browse other questions tagged or ask your own question.