2 papers
math.NA2026
Convergence and mixed-precision preconditioning for the naive Jacobi eigenvalue algorithm
Erna Begovic, Marija Miloloza Pandur, Ana Perkovic
The paper studies a Jacobi-type method for the eigenvalue problem of general complex matrices with simple eigenvalues. The method applies elementary triangular similarity transform…
math.NA2026
An indefinite LOBPCG type of algorithm for detecting a definite Hermitian matrix pair
Marija Miloloža Pandur
A Hermitian matrix pair is called definite if some real linear combination of the matrices and is a positive definite matrix. Detection of the definiteness is not s…