On the degeneracy of quadratic forms
نویسندگان
چکیده
Undoubtedly, every reader has tried to clarify a notion in one source by consulting another, only to be frustrated that the presentations are inconsistent in vocabulary or notation. Recently, this happened to us in a study of conics. While reading Peter Cameron’s Combinatorics: Topics, Techniques, and Algorithms [8], we encountered a definition of a non-singular quadratic form Q = Q(x, y, z) as one that
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