Prefer a chat interface with context about you and your work?
A sparse quasi-Newton update derived variationally with a nondiagonally weighted Frobenius norm
The problem of symmetric sparse updating is considered from a variational point of view and a new class of sparse symmetric quasi-Newton updating formulae is derived. This class results from the use of a nondiagonally weighted Frobenius norm. The computation of the update involves only one positive definite and symmetric …