Ramanathan, K.; Sivakumar, K. C. Nonnegative Moore-Penrose inverse of Gram matrices in an indefinite inner product space. (English) Zbl 1176.15007 J. Optim. Theory Appl. 140, No. 1, 189-196 (2009). Reviewer: Valeriu Prepeliţă (Bucureşti) MSC: 15A09 15A63 15B48 × Cite Format Result Cite Review PDF Full Text: DOI
Tao, J. Positive principal minor property of linear transformations on Euclidean Jordan algebras. (English) Zbl 1183.17015 J. Optim. Theory Appl. 140, No. 1, 131-152 (2009). Reviewer: John D. Dixon (Ottawa) MSC: 17C50 15A30 × Cite Format Result Cite Review PDF Full Text: DOI