On the approximation of real powers of sparse, infinite, bounded and Hermitian matrices

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

No reviews yet.

No comments yet.