* -Doubles and Embedding of Associative Algebras in B(H)POPOVYCH, Stanislav.Indiana University mathematics journal. 2008, Vol 57, Num 7, pp 3443-3462, issn 0022-2518, 20 p.Article

Positive semidefinite quadratic forms on unitary matricesPOPOVYCH, Stanislav.Linear algebra and its applications. 2010, Vol 433, Num 1, pp 164-171, issn 0024-3795, 8 p.Article

Matrix Ordered Operator AlgebraJUSCHENKO, Kate; POPOVYCH, Stanislav.Indiana University mathematics journal. 2009, Vol 58, Num 3, pp 1203-1218, issn 0022-2518, 16 p.Article

TRACE-POSITIVE COMPLEX POLYNOMIALS IN THREE UNITARIESPOPOVYCH, Stanislav; JUNGE, Marius.Proceedings of the American Mathematical Society. 2010, Vol 138, Num 10, pp 3541-3550, issn 0002-9939, 10 p.Article