Ammar, G.S.Reichel, L.Sorensen, D.C.2018-06-182018-06-181990-06Ammar, G.S., Reichel, L. and Sorensen, D.C.. "An Implementation of a Divide and Conquer Algorithm for the Unitary Eigenproblem." (1990) <a href="https://hdl.handle.net/1911/101694">https://hdl.handle.net/1911/101694</a>.https://hdl.handle.net/1911/10169414 ppengAn Implementation of a Divide and Conquer Algorithm for the Unitary EigenproblemTechnical reportTR90-30