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pro vyhledávání: '"A Broustet"'
Publikováno v:
In Information Sciences April 2024 665
Autor:
Broustet, Amaël, Gongyo, Yoshinori
We discuss the Calabi--Yau type structure of normal projective surfaces and Mori dream spaces admitting a non-trivial polarized endomorphism.
Comment: 13 pages, Major revision, v3. remove serious and non serious mistakes, v4. minor modification,
Comment: 13 pages, Major revision, v3. remove serious and non serious mistakes, v4. minor modification,
Externí odkaz:
http://arxiv.org/abs/1607.01382
Autor:
Koch, M., Broustet, J.-P.
Publikováno v:
In Archives des Maladies du Coeur et des Vaisseaux – Pratique June 2020 2020(289):16-21
Autor:
Broustet, Amaël, Höring, Andreas
Let X be a normal variety such that $K_X$ is Q-Cartier, and let $f: X \rightarrow X$ be a finite surjective morphism of degree at least two. We establish a close relation between the irreducible components of the locus of singularities that are not l
Externí odkaz:
http://arxiv.org/abs/1210.6254
We explain how to deduce from recent results in the Minimal Model Program a general uniruledness theorem for base loci of adjoint divisors. We also show how to recover special cases by extending a technique introduced by Takayama.
Comment: versi
Comment: versi
Externí odkaz:
http://arxiv.org/abs/0902.1142
Autor:
Broustet, Amaël, Pacienza, Gianluca
It is well known that a smooth projective Fano variety is rationally connected. Recently Zhang (and later Hacon and McKernan as a special case of their work on the Shokurov RC-conjecture) proved that the same conclusion holds for a klt pair $(X,\D)$
Externí odkaz:
http://arxiv.org/abs/0901.4494
Autor:
Broustet, Amaël, Höring, Andreas
Let X be a smooth projective threefold, and let A be an ample line bundle such that $K_X+A$ is nef. We show that if $K_X$ or $-K_X$ is pseudoeffective, the adjoint bundle $K_X+A$ has global sections. We also give a very short proof of the Beltrametti
Externí odkaz:
http://arxiv.org/abs/0811.3059
Autor:
Broustet, Amaël
We prove that Seshadri constants of some ample divisors are bigger than 1 on smooth threefolds whose anticanonical bundle is nef or on Fano varieties of small coindice. The main tools are (some known cases of) the Kawamata's effective non-vanishing c
Externí odkaz:
http://arxiv.org/abs/0707.4140
Autor:
Broustet, Amaël
We compute in this note the Seshadri constants of the anticanonical bundle at every point of Del Pezzo surfaces. During the proof, we enlight the role of rational curves in our computations. We present then two exemples where the positivity of the an
Externí odkaz:
http://arxiv.org/abs/math/0601225
Autor:
Broustet, Amaël, Gongyo, Yoshinori
Publikováno v:
Taiwanese Journal of Mathematics, 2017 Jun 01. 21(3), 569-582.
Externí odkaz:
https://www.jstor.org/stable/90010222