The paper reviews the iterative Image Space Reconstruction Algorithm (ISRA) for solving Linear Inverse Problems with Positive Constraints. The development follows that for the EM algorithm in Vardi ...

This is a preview. Log in through your library . Abstract In this paper we discuss the application of Lawson's algorithm for computing best linear Chebyshev approximations to complex-valued functions.

Quantum computers can do wondrous things: too bad they do not exist yet. That has not stopped physicists from devising new algorithms for the devices, which can calculate a lot faster than ordinary ...