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Asterios Gkantzounis's user avatar
Asterios Gkantzounis's user avatar
Asterios Gkantzounis's user avatar
Asterios Gkantzounis
  • Member for 14 years
  • Last seen more than a month ago
  • Αθήνα, Κεντρικός Τομέας Αθηνών, Ελλάδα
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Is the $n$-th prime $p_n$ expressible as the difference of coprime $A, B$ such that the set of prime divisors of $AB$ is $\{p_1, \dots, p_{n-1}\}$?
By $p_i | (A \mathrm{or} B )$ I meant that $p_i | A\cdot B \forall 1 \leq i \leq n-1$ I am sorry if that was not clear
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Is the $n$-th prime $p_n$ expressible as the difference of coprime $A, B$ such that the set of prime divisors of $AB$ is $\{p_1, \dots, p_{n-1}\}$?
@quid yes i wanted to say that only $p_i$ divide A and B,but i think that it doesnt affect the definition of minimum,thus $p_n$ is the same.
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Ihara zeta and chromatic number of graphs
Thank you Chris, the same goes for the edge zeta too?Could you propose some article or other resource?
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Ihara zeta and chromatic number of graphs
edited body; edited title
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Ihara zeta and chromatic number of graphs
edited title; edited title
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