This textbook presents a special solution to underdetermined linear systems where the number of nonzero entries in the solution is very small compared to the to

Mathematics of Computing -- General.

Next, we introduce Stagewise Orthogonal Matching Pursuit (StOMP), a rapid iterative method to find sparse approximate solutions to underdetermined linear system

The sparse backslash book. Everything you wanted to know but never dared to ask about modern direct linear solvers. Chen Greif, Assistant Professor, Department