2013/03/25 by Felix Schüller, Schüller, Felix
Mathematics · #14B05 #14B10 #14J17 #Advanced Differential Equations and Dynamical Systems #Algebraic Geometry (math.AG) #Algebraic Geometry and Number Theory #FOS: Mathematics #Mathematical Dynamics and Fractals #math.AG #msc:14B05 #msc:14B10 #msc:14J17
paper · pdf · doi:10.48550/arxiv.1303.6128
arxiv created 2013/03/25 · openalex publication_date 2013/03/25 · arxiv updated 2013/03/26 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
Over \C, 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 \C, 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".