弱法诺曲面反典范体积的多项式下界
Polynomial Lower Bounds for Anticanonical Volumes of Weak Fano Surfaces
- School of Mathematical Sciences, Fudan University(复旦大学数学科学学院)
机构由 AI 辅助整理,请以论文原文为准。
AI总结:
本文证明任意复$\u03b5$-对数典范弱 del Pezzo 曲面的反典范体积满足显式多项式下界$(-K_X)^2\u2265 c\u03b5^{84}$,其中$c>0$为显式常数。
AI中文摘要:
我们证明了任意复$\u03b5$-对数典范弱 del Pezzo 曲面的反典范体积具有显式多项式下界。更精确地,存在显式常数$c>0$,使得对每个这样的曲面及每个$0<\u03b5 \u2264 1$,有$(-K_X)^2\u2265 c\u03b5^{84}$。
英文摘要:
We prove an explicit lower bound of order $\varepsilon^3/(1+\log(1/\varepsilon))$ for the anticanonical volume of every complex $\varepsilon$-log canonical weak del Pezzo surface. This general estimate is close to being sharp, as it differs from the conjectured optimal quadratic order only by one power of $\varepsilon$ and a logarithmic factor.