From cracked polytopes to Fano threefolds

We construct Fano threefolds with very ample anti-canonical bundle and Picard rank greater than one from cracked polytopes—polytopes whose intersection with a complete fan forms a set of unimodular polytopes—using Laurent inversion; a method developed jointly with Coates–Kasprzyk. We also give const...

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Main Author: Prince, T
Format: Journal article
Language:English
Published: Springer Verlag 2020
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author Prince, T
author_facet Prince, T
author_sort Prince, T
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description We construct Fano threefolds with very ample anti-canonical bundle and Picard rank greater than one from cracked polytopes—polytopes whose intersection with a complete fan forms a set of unimodular polytopes—using Laurent inversion; a method developed jointly with Coates–Kasprzyk. We also give constructions of rank one Fano threefolds from cracked polytopes, following work of Christophersen–Ilten and Galkin. We explore the problem of classifying polytopes cracked along a given fan in three dimensions, and classify the unimodular polytopes which can occur as ‘pieces’ of a cracked polytope.
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spelling oxford-uuid:39e92cd8-4ef4-4dc6-b87a-3ad50b8161cd2022-03-26T13:58:24ZFrom cracked polytopes to Fano threefoldsJournal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:39e92cd8-4ef4-4dc6-b87a-3ad50b8161cdEnglishSymplectic ElementsSpringer Verlag2020Prince, TWe construct Fano threefolds with very ample anti-canonical bundle and Picard rank greater than one from cracked polytopes—polytopes whose intersection with a complete fan forms a set of unimodular polytopes—using Laurent inversion; a method developed jointly with Coates–Kasprzyk. We also give constructions of rank one Fano threefolds from cracked polytopes, following work of Christophersen–Ilten and Galkin. We explore the problem of classifying polytopes cracked along a given fan in three dimensions, and classify the unimodular polytopes which can occur as ‘pieces’ of a cracked polytope.
spellingShingle Prince, T
From cracked polytopes to Fano threefolds
title From cracked polytopes to Fano threefolds
title_full From cracked polytopes to Fano threefolds
title_fullStr From cracked polytopes to Fano threefolds
title_full_unstemmed From cracked polytopes to Fano threefolds
title_short From cracked polytopes to Fano threefolds
title_sort from cracked polytopes to fano threefolds
work_keys_str_mv AT princet fromcrackedpolytopestofanothreefolds