Hostname: page-component-848d4c4894-75dct Total loading time: 0 Render date: 2024-06-03T15:11:35.455Z Has data issue: false hasContentIssue false

Positive values of inhomogeneous quaternary quadratic forms, I

Published online by Cambridge University Press:  09 April 2009

Vishwa Chander Dumir
Affiliation:
University of IllinoisUrbana, Illinois
Rights & Permissions [Opens in a new window]

Extract

Core share and HTML view are not available for this content. However, as you have access to this content, a full PDF is available via the ‘Save PDF’ action button.

Let Q(x1, …, xn) be an indefinite quadratic form in n-variables with real coefficients, determinant D ≠ 0 and signature (r, s), r+s = n. Then it is known (e.g. see Blaney [2]) that there exist constants Γr, s depending only on r and s such for any real numbers c1, …, cn we can find integers x1, …, xn satisfying

Type
Research Article
Copyright
Copyright © Australian Mathematical Society 1968

References

[1]Barnes, E. S., ‘The positive values of inhomogeneous ternary quadratic forms’, J. Australian Math. Soc. 2 (1961), 127132.CrossRefGoogle Scholar
[2]Blaney, H., ‘Indefinite quadratic forms in n variables,’ J. London Math. Soc. 23 (1948), 153160.CrossRefGoogle Scholar
[3]Blaney, H., ‘Some asymmetric inequalities, Proc. Camb. Phil. Soc. 46 (1950), 359376.CrossRefGoogle Scholar
[4]Davenport, H., ‘Non-homogeneous ternary quadratic forms’, Acta Math. 80 (1948), 6595.CrossRefGoogle Scholar
[5]Davenport, H. and Heilbronn, H., ‘Asymmetric inequalities for non-homogeneous linear forms’, J. London Math. Soc. 22 (1947), 5361.CrossRefGoogle Scholar
[6]Dumir, V. C., ‘Asymmetric inequalities for non-homogeneous ternary quadratic forms’, accepted for publication in Proc. Camb. Phil. Soc.Google Scholar
[7]Oppenheim, A., ‘One-sided inequalities for quadratic forms (I), Ternary forms, Proc. London Math. Soc. (3) 3 (1953), 328337.CrossRefGoogle Scholar
[8]Oppenheim, A., ‘One-sided inequalities for quadratic forms (II), Quaternary forms’, Proc. London Math. Soc. (3) 3 (1953), 417429.CrossRefGoogle Scholar