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On Higgs bundles over Shimura varieties of ball quotient type

Kang ZuoXin LuKe ChenSheng-li Tan

subject

Pure mathematicsMathematics - Number TheoryApplied MathematicsGeneral MathematicsMathematics::Number Theory010102 general mathematicsFibrationQuotient type01 natural sciencesUnitary stateMathematics::Algebraic TopologyMathematics - Algebraic GeometryMathematics::Algebraic GeometryFOS: MathematicsHiggs bosonNumber Theory (math.NT)Ball (mathematics)0101 mathematicsMathematics::Representation TheoryAlgebraic Geometry (math.AG)Mathematics

description

We prove the generic exclusion of certain Shimura varieties of unitary and orthogonal types from the Torelli locus. The proof relies on a slope inequality on surface fibration due to G. Xiao, and the main result implies that certain Shimura varieties only meet the Torelli locus in dimension zero.

http://arxiv.org/abs/1610.07845