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Matthew Kahle's user avatar
Matthew Kahle's user avatar
Matthew Kahle's user avatar
Matthew Kahle
  • Member for 14 years, 9 months
  • Last seen more than a week ago
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Small simplicial complexes with torsion in their homology?
Newman answers this question as well. His paper actually shows that every finite abelian group $G$ is the torsion subgroup of homology $H_{d-1}(K)$ for a simplicial complex $K$ on $n$ vertices, where $n = O \left(log^{1/d} |G| \right)$.
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Ramanujan graphs from varieties over finite fields
clarified notation, updated question to reflect that part of it was answered.
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