【115/3/19】12:00-14:00 蔡勝峻 同學（國立成功大學數學系)
發佈日期 :
2026-03-12
| Student Seminar on Geometry | |
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| Time | 2026-3-19 12:00-14:00 |
| Venue | 數學館2樓 31203 教室 |
| Speaker | 蔡勝峻 同學（國立成功大學數學系) |
| Title | Rationality and the Base Point Freeness Theorem |
| Abstract | Abstract Let S be a smooth projective surface with K_S being non-nef. Suppose that A is an ample divisor and r = sup{ t | A+t K_S is nef }. Rationality & base point freeness theorem (for surfaces) states that r is a rational number and L:= A+r K_S is semiample. In this talk, we will explain the idea and give a proof. |
| Reference |
(1) Kenji Matsuki, Introduction to the Mori program. |
| Organizer | 賴青瑞、李宗儒 |
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