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$p$-torsion elements in local cohomology modules

$p$-torsion elements in local cohomology modules

For every prime integer p, M. Hochster conjectured the existence of certain p-torsion elements in a local cohomology module over a regular ring of mixed characteristic.We show that Hochster's conjecture is false.We next construct an example where a local cohomology module over a hypersurface has ptorsion elements for every prime …