ON BOUNDEDNESS OF DIVISORS COMPUTING MINIMAL LOG DISCREPANCIES FOR SURFACES
نویسندگان
چکیده
Abstract Let $\Gamma $ be a finite set, and $X\ni x$ fixed kawamata log terminal germ. For any lc germ $(X\ni x,B:=\sum _{i} b_iB_i)$ , such that $b_i\in \Gamma Nakamura’s conjecture, which is equivalent to the ascending chain condition conjecture for minimal discrepancies germs, predicts there always exists prime divisor E over $a(E,X,B)=\mathrm {mld}(X\ni x,B)$ $a(E,X,0)$ bounded from above. We extend setting not necessarily satisfies descending condition, show it holds surfaces. also find some sufficient conditions boundedness of .
منابع مشابه
Boundedness and K for Log Surfaces
0. Introduction 1 1. Standard definitions 3 2. Examples 4 3. Some methods for proving boundedness 8 4. Additional definitions and easy technical results 9 5. The diagram method 10 6. Boundedness for surfaces with nef −(K+B) 14 7. Boundedness for surfaces with big and nef K +B 18 8. Descending Chain Condition 23 9. Boundedness for the constant (K +B)2 27 10. On log MMP for surfaces 28 11. Conclu...
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ژورنال
عنوان ژورنال: Journal of The Institute of Mathematics of Jussieu
سال: 2022
ISSN: ['1474-7480', '1475-3030']
DOI: https://doi.org/10.1017/s1474748022000299