Talk:Roothaan equations

Physics Low‑importance

	Physics portal This article is within the scope of WikiProject Physics, a collaborative effort to improve the coverage of Physics on Wikipedia. If you would like to participate, please visit the project page, where you can join the discussion and see a list of open tasks.PhysicsWikipedia:WikiProject PhysicsTemplate:WikiProject Physicsphysics articles
Low	This article has been rated as Low-importance on the project's importance scale.

Chemistry Low‑importance

	This article is within the scope of WikiProject Chemistry, a collaborative effort to improve the coverage of chemistry on Wikipedia. If you would like to participate, please visit the project page, where you can join the discussion and see a list of open tasks.ChemistryWikipedia:WikiProject ChemistryTemplate:WikiProject ChemistryChemistry articles
Low	This article has been rated as Low-importance on the project's importance scale.

Is there a more specific name for this type of eigenvalue problem where the eigenvector coefficients are not in the same basis as the operator? Plediii (talk) 14:49, 9 March 2010 (UTC)[reply]

If you are referring to the operator C on the right hand side of Sx=εCx, that is called a generalized eigenvalue problem (in the linear case, at least). — Steven G. Johnson (talk) 16:24, 9 March 2010 (UTC)[reply]