On a Problem of Miyaoka
نویسندگان
چکیده
We give an example of a vector bundle E on a relative curve C → SpecZ such that the restriction to the generic fiber in characteristic zero is semistable but such that the restriction to positive characteristic p is not strongly semistable for infinitely many prime numbers p. Mathematical Subject Classification (2000): 11A41; 13A35; 14H60
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† Department of Complex Systems Science, Graduate School of Information Science, Nagoya University, Furo-cho, Chikusa-ku, Nagoya 464-8601, Japan ‡ Honda R&D Co., Ltd., Motorcycle R&D Center, 3-15-1, Senzui, Asaka-shi, Saitama 351-0024, Japan. E-mail: [email protected] §Shizuoka Institute of Science and Technology, Faculty of Comprehensive Informatics, 2200-2, Toyosawa, Fukuro...
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