On definite quadratic forms, which are not the sum of two definite or semi-definite forms
نویسندگان
چکیده
منابع مشابه
On Definite Quadratic Forms, Which Are Not the Sum of Two Definite or Semi-definite Forms
be a positive definite quadratic form with determinant D R and integer coefficients a ;Call it an even form if all a ; ; are even ., an odd form if at least one a ;; is odd . Then Í,, is called non-decomposable, if it cannot be expressed as a sum of two non-negative quadratic forms with integer coefficients . Mordell 1 ) proved that f, can always be decomposed into a sum of five squares of line...
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ژورنال
عنوان ژورنال: Acta Arithmetica
سال: 1939
ISSN: 0065-1036,1730-6264
DOI: 10.4064/aa-3-1-102-122