We prove a Reider type theorem for separating any cluster by an adjoint system to a pseudoeffective divisor on a normal surface. As a corollary we get a Reider type theorem for adjoint linear systems (to a nef Q-divisor) on normal log surfaces. This theorem is new even for smooth surfaces
We give a description of all log-Fano pairs (X, D) where X is a smooth toric surface and D a reduced...
Let $X $ be asmooth projective variety and $Kx $ be acanonical divisor of $X $. Then $X $ is called ...
Abstract. We use orbifold structures to deduce degeneracy statements for holomorphic maps into logar...
Consiglio Nazionale delle Ricerche - Biblioteca Centrale - P.le Aldo Moro, 7 Rome / CNR - Consiglio ...
We prove the finite generation of the adjoint ring for Q-factorial log surfaces over any algebraical...
We prove that admissible normal functions over surfaces extend to sections of log Néron models
Abstract. Smooth complex surfaces polarized with an ample and globally generated line bundle of degr...
This note contains a new proof of a theorem of Gang Xiao saying that the bicanonical map of a surfac...
In this article, a log del~Pezzo surface of index two means a projective normal non-Gorenstein surfa...
We consider an excellent curve on a regular surface without any assumption on the base field. Our in...
AbstractWe prove a non-vanishing theorem of the cohomology H0 of the adjoint divisor KX+⌈L⌉ where ⌈L...
In this study, we work on the surfaces determined in relation to associated curves. We study normal ...
The divisor theories on finite graphs and metric graphs were introduced systematically as analogues ...
Assume that $X$ is a normal projective variety over ${\Bbb C}$, of dimension $\leqq 3$, and that $(X...
We exhibit a relationship between projective duality and the sheaf of logarithmic vector fields alon...
We give a description of all log-Fano pairs (X, D) where X is a smooth toric surface and D a reduced...
Let $X $ be asmooth projective variety and $Kx $ be acanonical divisor of $X $. Then $X $ is called ...
Abstract. We use orbifold structures to deduce degeneracy statements for holomorphic maps into logar...
Consiglio Nazionale delle Ricerche - Biblioteca Centrale - P.le Aldo Moro, 7 Rome / CNR - Consiglio ...
We prove the finite generation of the adjoint ring for Q-factorial log surfaces over any algebraical...
We prove that admissible normal functions over surfaces extend to sections of log Néron models
Abstract. Smooth complex surfaces polarized with an ample and globally generated line bundle of degr...
This note contains a new proof of a theorem of Gang Xiao saying that the bicanonical map of a surfac...
In this article, a log del~Pezzo surface of index two means a projective normal non-Gorenstein surfa...
We consider an excellent curve on a regular surface without any assumption on the base field. Our in...
AbstractWe prove a non-vanishing theorem of the cohomology H0 of the adjoint divisor KX+⌈L⌉ where ⌈L...
In this study, we work on the surfaces determined in relation to associated curves. We study normal ...
The divisor theories on finite graphs and metric graphs were introduced systematically as analogues ...
Assume that $X$ is a normal projective variety over ${\Bbb C}$, of dimension $\leqq 3$, and that $(X...
We exhibit a relationship between projective duality and the sheaf of logarithmic vector fields alon...
We give a description of all log-Fano pairs (X, D) where X is a smooth toric surface and D a reduced...
Let $X $ be asmooth projective variety and $Kx $ be acanonical divisor of $X $. Then $X $ is called ...
Abstract. We use orbifold structures to deduce degeneracy statements for holomorphic maps into logar...
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