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Results tagged with sumsets
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user 538735
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Asymptotic behavior of sumsets of squares with restricted congruence conditions
Recall that if $A$ and $B$ are both subsets of the integers, then $A+B=\{a+b:a \in A,b \in B\}$.
Lagrange's four-square theorem states that if $A$ is the set of squares, then $4A=A+A+A+A=\mathbb{N}$.
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