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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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Covering Systems of infinite sets of residue classes mod primes
Sorry i was writing when you edit and didnt see it.
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Covering Systems of infinite sets of residue classes mod primes
First of all i asked for mod primes which is known of chinese remainder theorem that for every finite system is not covering system. I asked for infinite systems.Is there any result that says under what circumstances?
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What is the shortest proof of the existence of a prime between $p$ and $p^2$ ? other examples?
Pete,thank you ,of course i mean really shorter,impressively shorter.
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What is the shortest proof of the existence of a prime between $p$ and $p^2$ ? other examples?
thanks for the link,i putted numbers in front of the questions (i hope i havent change the meaning of your comment)
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For what subsets S of (Z/nZ)* is there a Euclidean proof that there are infinitely many primes whose residues lie in S?
sorry i havent noticed that.Do you know any other general classes because i am interested on that too. Moreover is there any proof with elementary methods that there is at least one prime of the form ak+m (a,m)=1?(for some general classes etc.)
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form of primes:prime plus a power of 2?
thnx a lot as for the other question?
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form of primes:prime plus a power of 2?
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form of primes:prime plus a power of 2?
i changed the question according to the answer that Gjergji gave me
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