07-108 Roman Werpachowski
On the approximation of real powers of sparse, infinite, bounded and Hermitian matrices (218K, PDF) Apr 30, 07
Abstract , Paper (src), View paper (auto. generated pdf), Index of related papers

Abstract. We describe a method to approximate the matrix elements of a real power $\alpha$ of a positive (for $\alpha \in \mathbb{R}$) or non-negative (for $\alpha \ge 0$), infinite, bounded, sparse and Hermitian matrix $W$. The approximation uses only a finite part of the matrix $W$.

Files: 07-108.src( 07-108.keywords , apprpow.pdf.mm )