On taut singularities in arbitrary characteristics
Schüller, Felix
Original · EN
Over, Henry Laufer classified all taut surface singularities. We adapt and extent his transcendental methods to positive characteristic. With this we show that if a normal surface singularity is taut over, then the normal surface singularities with isomorphic dual graph over algebraically closed fields of characteristic exponent p>1 are taut for all but finitely many p. We conjecture that this is actually "if and only if".
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