ISSN:
1572-9303
Keywords:
quadratic forms
;
2-universal
;
positive definite
;
quinary $$\mathbb{Z}$$ -lattices
Source:
Springer Online Journal Archives 1860-2000
Topics:
Mathematics
Notes:
Abstract As a generalization of the famous four square theorem of Lagrange, Ramanujan found all positive definite integral quaternary diagonal quadratic forms that represent all positive integers. In this paper, we find all positive definite integral quinary diagonal quadratic forms that represent all positive definite integral binary quadratic forms.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1023/A:1009797524602
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