Roland W. Freund

• Stoer
• A biconjugate gradient type algorithm on massively parallel architectures
• A restricted signature normal form for Hermitian matrices, quasi-spectral decompositions, and applications
• An implementation of the look-ahead Lanczos algorithm for non-Hermitian matrices
• Conjugate gradient type methods for linear systems with complex symmetric coefficient matrices
• Formally biorthogonal polynomials and a look-ahead Levinson algorithm for general Toeplitz systems
• Krylov subspace methods for complex non-Hermitian linear systems
• New Bernstein type inequalitites for polynomials on ellipses
• On Bernstein type inequalities and a weighted Chebyshev approximation problem on ellipses
• On conjugate gradient type methods and polynomial preconditioners for a class of complex non-Hermitian matrices
• On polynomial preconditioning for indefinite Hermitian matrices
• On the constrained Chebyshev approximation problem on ellipses