Evaluation of the convolution sums ∑a1m1+a2m2+a3m3+a4m4=nσ(m1)σ(m2)σ(m3)σ(m4) with lcm(a1,a2,a3,a4) ≤ 4 (Q5357497)
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scientific article; zbMATH DE number 6773499
| Language | Label | Description | Also known as |
|---|---|---|---|
| English | Evaluation of the convolution sums ∑a1m1+a2m2+a3m3+a4m4=nσ(m1)σ(m2)σ(m3)σ(m4) with lcm(a1,a2,a3,a4) ≤ 4 |
scientific article; zbMATH DE number 6773499 |
Statements
Evaluation of the convolution sums ∑a1m1+a2m2+a3m3+a4m4=nσ(m1)σ(m2)σ(m3)σ(m4) with lcm(a1,a2,a3,a4) ≤ 4 (English)
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8 September 2017
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convolution sum
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sums of divisor functions
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quasimodular form
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number of representation by quadratic forms
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