数学论文证明了射影化环面向量束满足Fujita自由猜想，给出了具体条件下的整体生成性证明。
该论文证明了射影化环面向量束满足Fujita自由猜想。研究针对维数n≥1的光滑射影环面簇上的秩r≥2的环面向量束。作者通过爆破论证法，证明了当整数m满足ma≥r且mδ(A)>n时，典范丛K_Y+mA是整体生成的。特别地，当m≥n+1且ma≥r时，K_Y+mA整体生成。该结果的统一界是紧的。
Fujita freeness for projectivized toric vector bundles
Let $X$ be a smooth projective toric variety of dimension $n\geq1$ over an algebraically closed field of characteristic zero, let $\mathcal E$ be a toric vector bundle of rank $r\geq2$, and let $π\colon Y=\mathbb P_X(\mathcal E)\to X$ be the projective bundle of one-dimensional quotients. Write an ample line bundle on $Y$ as $A=\mathcal O_Y(a)\otimesπ^*L$, with $a\geq1$. We record a blow-up argument proving that $K_Y+mA$ is globally generated whenever an integer $m$ satisfies $ma\geq r$ and $mδ(A)>n$, where $δ(A)$ is a positive integer obtained from the degrees of $A$ on the invariant quotient sections over the torus-invariant curves of $X$. In particular, $K_Y+mA$ is globally generated for $m\geq n+1$ and $ma\geq r$. Consequently every projectivized toric vector bundle satisfies Fujita's freeness conjecture. The uniform bound is sharp. We also formulate the result as a global-generation theorem for adjoint symmetric powers of $\mathcal E$ and explain its relation with the Seshadri-constant results of Hering--Mustaţă--Payne and Fulger--Murayama. ChatGPT (OpenAI) was used to assist with mathematical discussion, language, and bibliographic searches.