On a Problem of Miyaoka

نویسندگان

  • HOLGER BRENNER
  • Sophie Germain
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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تاریخ انتشار 2004