Abstract
Let n ≥ 4 and let Q ∈ ℤ[X1, …, Xn] be a non-singular quadratic form. When Q is indefinite we provide new upper bounds for the least non-trivial integral solution to the equation Q = 0, and when Q is positive definite we provide improved upper bounds for the greatest positive integer k for which the equation Q = k is insoluble in integers, despite being soluble modulo every prime power.
Translated title of the contribution | On the representation of integers by quadratic forms |
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Original language | English |
Pages (from-to) | 289 - 416 |
Number of pages | 28 |
Journal | Proceedings of the London Mathematical Society |
Volume | 96 (2) |
DOIs | |
Publication status | Published - Mar 2008 |
Bibliographical note
Publisher: Oxford University PressOther: arXiv:math/0603358