题目：On the Stability of Tangent Bundle on Double Coverings
报告人：张永明 博士 （复旦大学）
时间：2017年04月28日（周五）10：50~11：50
地点：致远楼107室
【摘要】 Let Y be a smooth projective surface defined over an algebraically closed field k with char k>2, and let $/pi:X->Y$ be a double covering branched along a smooth divisor. We show that the tangent bundle T_X is stable with respect to $/pi^*{H}$ if the tangent bundle T_Y is semi-stable with respect to some ample line bundle H on Y.
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