Unitary similarity of algebras generated by pairs of orthoprojectors. Al'pin, Yu.A.; Ikramov, Kh.D. — 2005 Zapiski Nauchnykh Seminarov POMI
Permanental associated matrices and Schneider's theorem. Al'pina, V.S.; Al'pin, Yu.A. — 2004 Zapiski Nauchnykh Seminarov POMI
The matrix equation A X - Y B = C and related problems. Al'pin, Yu.A.; Ilyin, S.N. — 2005 Zapiski Nauchnykh Seminarov POMI