Bulletin of the American Mathematical Society

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ISSN 1088-9485(e) ISSN 0273-0979(p)

Levels in algebra and topology

Author(s): Z. D. Dai; T. Y. Lam; C. K. Peng
Journal: Bull. Amer. Math. Soc. 3 (1980), 845-848.
MSC (1980): Primary 10J05, 13B25, 55M10; Secondary 10Cxx, 10M05, 13F20, 55P99
MathSciNet review: 578376
Retrieve article in: PDF

References:

1.: R. Baeza, Quadratic forms over semilocal rings, Lecture Notes in Math., vol. 655, Springer-Verlag, Berlin and New York, 1978. MR 491773
2.: M. Knebusch, Some open problems, Proc. Quadratic Form Conf. (G. Orzech, ed.), Queen's Papers in Pure and Applied Math., vol. 46, Kingston, Ontario, 1976, pp. 361-370. MR 561078
3.: A. Pfister, Darstellung von —1 als Summe von Qiadraten in einem Körper, J. London Math. Soc. 40 (1965), 159-165.

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