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pro vyhledávání: '"Barban, Lorenzo"'
Autor:
Barban, Lorenzo
In this thesis we study the relation between algebraic torus actions on complex projective varieties and the birational geometry of their geometric quotients. Given a C*-action on a normal projective variety X, there exist two unique connected compon
Externí odkaz:
https://hdl.handle.net/11572/400749
Autor:
Barban, Lorenzo, Franceschini, Alberto
We introduce the notion of rooftop flip, namely a small modification among normal projective varieties which is modeled by a smooth projective variety of Picard number 2 admitting two projective bundle structures. Examples include the Atiyah flop and
Externí odkaz:
http://arxiv.org/abs/2303.15905
We construct a correspondence between Mori dream regions arising from small modifications of normal projective varieties and $\mathbb{C}^*$-actions on polarized pairs which are bordisms. Moreover, we show that the Mori dream regions constructed in th
Externí odkaz:
http://arxiv.org/abs/2207.09864
Autor:
Barban, Lorenzo, Romano, Eleonora A.
Starting from $\mathbb{C}^*$-actions on complex projective varieties, we construct and investigate birational maps among the corresponding extremal fixed point components. We study the case in which such birational maps are locally described by toric
Externí odkaz:
http://arxiv.org/abs/2104.14442
Autor:
Barban, Lorenzo, Franceschini, Alberto
Publikováno v:
Collectanea Mathematica; Sep2024, Vol. 75 Issue 3, p841-855, 15p
Akademický článek
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