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On classes of copositive matrices. (English) Zbl 0196.05602


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[1] Baston, V. J.D., Extreme copositive quadratic forms, Acta Arith., 15, 319-327 (1969) · Zbl 0186.36502
[2] Baumert, L. D., Extreme copositive forms, Pacific J. Math., 19, 197-204 (1966) · Zbl 0145.25501
[3] Baumert, L. D., Extreme copositive forms, II, Pacific J. Math., 20, 1-20 (1967) · Zbl 0189.32904
[4] L.D. Baumert, private communication, Dec. 13, 1967; L.D. Baumert, private communication, Dec. 13, 1967
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[7] Gantmacher, F. R., Matrix theory, Vol. 2, 53 (1959), Chelsea, New York · Zbl 0085.01001
[8] Garsia, A., Remarks about copositive forms (Dec. 1, 1964), Department of Mathematics, University of California: Department of Mathematics, University of California San Diego, Working Paper
[9] Hall, M., Combinatorial theory (1967), Blaisdell Publishing Co: Blaisdell Publishing Co Waltham, Mass · Zbl 0196.02401
[10] Hall, M.; Newman, M., Copositive and completely positive quadratic forms, Proc. Cambridge Philos. Soc., 59, 329-339 (1963) · Zbl 0124.25302
[11] Haynsworth, Emilie; Hoffman, A. J., Two Remarks on Copositive Matrices, Linear Algebra, 2, 387-392 (1969) · Zbl 0185.08004
[12] Lemke, C. E., Bimatrix equilibrium points and mathematical programming, Management Sci., 11, 681-689 (1965) · Zbl 0139.13103
[13] Motzkin, T. S., Nat. Bur. Standards Rep., 1818, 11-12 (1952)
[14] Motzkin, T. S., Quadratic forms positive for nonnegative variables not all zero, Notices Amer. Math. Soc., 12, 224 (1965)
[15] Motzkin, T. S., Signs of minors, (Shisha, O., Inequalities (1967), Academic Press: Academic Press New York) · Zbl 0153.54104
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