decomposable symmetric tensors - Project Euclid

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Consider z = ro(a — τλb) V. V (a — rk b) e(A;) . Clearly, P(α) = Vfc(# °/)^ which implies x Λ- y — z because the res- triction of V\ΰ ° f to ζa,K){k) is injective.
PACIFIC JOURNAL OF MATHEMATICS Vol. 35, No. 1, 1970

DECOMPOSABLE SYMMETRIC TENSORS LARRY J. CUMMINGS

A k-field is a field over which every polynomial of degree less than or equal to k splits completely. The main theorem th characterizes the maximal decomposable subspaces of the k symmetric space \/k V, where V is finite-dimensional vector space over an infinite /ofield. They come in three forms: (1) {Xί V V xk: xk e V}, xu , Xk-i fixed (2)

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