Products of sums of squares

zbMath0541.10025MaRDI QIDQ794696

Daniel B. Shapiro

Publication date: 1984

Published in: Expositiones Mathematicae (Search for Journal in Brave)

zbMATH Keywords

bibliographyHurwitz theoremadmissibilityHurwitz-Radon functionproducts of sums of squaresrational admissibility

Mathematics Subject Classification ID

Quadratic forms over general fields (11E04) General binary quadratic forms (11E16)

Related Items (18)

Quadratic forms between Euclidean spheres ⋮ On the space of orthogonal multiplications in three and four dimensions and Cayley's nodal cubic ⋮ Quadratic eigenmaps between spheres ⋮ A note on the Hopf-Stiefel function ⋮ On the minimum size of restricted sumsets in cyclic groups ⋮ Generalized Hurwitz maps of the type \(S\times V\to W\) ⋮ The ring of \(k\)-regular sequences. II. ⋮ Gram spectrahedra ⋮ The minimum size of signed sumsets ⋮ Quadratic Forms ⋮ Unnamed Item ⋮ On the minimum size of signed sumsets in elementary abelian groups ⋮ On the composition of nondegenerate quadratic forms with an arbitrary index ⋮ Sumsets in vector spaces over finite fields ⋮ On the composition of nondegenerate quadratic forms with an arbitrary index ⋮ Generalized phase retrieval: measurement number, matrix recovery and beyond ⋮ Normed bilinear pairings for semi-Euclidean spaces near the Hurwitz-Radon range ⋮ Some new results on composition of quadratic forms

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