Cylinders in weak del pezzo fibrations
WebFamilies of simple subgroups in the Cremona group arising from del Pezzo fibrations Igor Krylov (KIAS Seoul, Republic of Korea) ... Cylinders in canonical del Pezzo fibrations Masatomo Sawahara (Saitama University, Japan) ... Classification of toric log del Pezzo surfaces with few singular points Yusuke Suyama (Osaka University, Japan) ... WebCYLINDERS IN WEAK DEL PEZZO FIBRATIONS MASATOMO SAWAHARA Abstract. In this article, we shall look into the existence of vertical cylinders contained in a weak del Pezzo fibration as a generalization of the former work due to Dubouloz and Kishimoto in which they observed that of vertical cylinders found in del Pezzo fibrations. The …
Cylinders in weak del pezzo fibrations
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WebSep 10, 2011 · CYLINDERS IN WEAK DEL PEZZO FIBRATIONS. 13 April 2024. MASATOMO SAWAHARA. On fibrations approaching the Arakelov equality. 01 September 2024. Maximilian Bieri. The fibration method over real function fields. 15 August 2024. WebApr 18, 2024 · We show that a del Pezzo fibration π: V → W of degree d contains a vertical open cylinder, that is, an open subset whose intersection with the generic fiber of π is isomorphic to Z × AK1 for some quasi-projective variety Z defined over the function field K of W, if and only if d ≥ 5 and π: V → W admits a rational section.
WebIn this article, we shall look into the existence of vertical cylinders contained in a weak del Pezzo fibration as a generalization of the former work due to Dubouloz and Kishimoto in … WebApr 21, 2016 · For each del Pezzo surface with du Val singularities, we determine whether it admits a -polar cylinder or not. If it allows one, then we present an effective -divisor that is -linearly equivalent to and such that the open set is a cylinder.
WebNov 27, 2024 · CYLINDERS IN WEAK DEL PEZZO FIBRATIONS Authors MASATOMO SAWAHARA Content type: OriginalPaper Published: 13 April 2024 Pages: 413 - 437 … WebCylinders in projective varieties play an important role in connection with unipotent group actions on certain affine algebraic varieties. The previous work due to Dubouloz and Kishimoto deals with the condition for a del Pezzo fibration to contain a vertical cylinder. In the present work, as a generalization in the sense of singularities, we shall determine the …
WebDec 18, 2024 · In this article, we shall look into the existence of vertical cylinders contained in a weak del Pezzo fibration as a generalization of the former work due to Dubouloz …
WebApr 13, 2024 · Abstract. In this article, we shall look into the existence of vertical cylinders contained in a weak del Pezzo fibration as a … greece is what type of landformWebDec 18, 2024 · Cylinders in projective varieties play an important role in connection with unipotent group actions on certain affine algebraic varieties. The previous work due to Dubouloz and Kishimoto deals... florists in wavertree liverpoolWebDec 18, 2014 · Certainly, cylinders are geometrically simple objects, however they received a lot of attention recently from the viewpoint of unipotent group actions on affine cones over polarized varieties... greece iteaWebIn this paper we describe stable rank two bundles on Del-Pezzo fibrations of degree 1 and 2 exploiting the correspondence with the lines in fibers. We show ... CYLINDERS IN WEAK DEL PEZZO FIBRATIONS. 13 April 2024. MASATOMO SAWAHARA. Extending rationally connected fibrations from ample subvarieties. 09 July 2024. greece italy tour packageWebSep 5, 2012 · Cylinders in singular del Pezzo surfaces Ivan Cheltsov, Jihun Park and Joonyeong Won Compositio Mathematica Published online: 21 April 2016 Article Some extremal contractions between smooth varieties arising from projective geometry Alberto Alzati and Francesco Russo Proceedings of the London Mathematical Society Published … greece itinerary delphi meteora nafplioWebMain Result 1: New Special Lagrangian Fibrations Theorem 1 (Collins-Jacob-L. ’19) Y=weak del Pezzo surface, D 2j K Y jsmooth. Then X = YnD admits a special Lagrangian bration with a special Lagrangian section with respect to the Tian-Yau metric. This solves conjectures of Yau and Auroux ’08. Probably the only non-trivial example so far. florists in waynesburg paWebMay 6, 2009 · 11 Citations Metrics Abstract We prove that a terminal three-dimensional del Pezzo fibration has no fibers of multiplicity >6. We also obtain a rough classification of possible configurations of singular points on multiple fibers and give some examples. Download to read the full article text References greece itunes charts