Effective Faithful Tropicalizations Associated to Linear Systems on Curves

Effective Faithful Tropicalizations Associated to Linear Systems on Curves
Author :
Publisher : American Mathematical Soc.
Total Pages : 110
Release :
ISBN-10 : 9781470447533
ISBN-13 : 1470447533
Rating : 4/5 (33 Downloads)

Synopsis Effective Faithful Tropicalizations Associated to Linear Systems on Curves by : Shu Kawaguchi

For a connected smooth projective curve X of genus g, global sections of any line bundle L with deg(L) ≥ 2g + 1 give an embedding of the curve into projective space. We consider an analogous statement for a Berkovich skeleton in nonarchimedean geometry: We replace projective space by tropical projective space, and an embedding by a homeomorphism onto its image preserving integral structures (or equivalently, since X is a curve, an isometry), which is called a faithful tropicalization. Let K be an algebraically closed field which is complete with respect to a nontrivial nonarchimedean value. Suppose that X is defined over K and has genus g ≥ 2 and that Γ is a skeleton (that is allowed to have ends) of the analytification Xan of X in the sense of Berkovich. We show that if deg(L) ≥ 3g − 1, then global sections of L give a faithful tropicalization of Γ into tropical projective space. As an application, when Y is a suitable affine curve, we describe the analytification Y an as the limit of tropicalizations of an effectively bounded degree.

The Canonical Ring of a Stacky Curve

The Canonical Ring of a Stacky Curve
Author :
Publisher : American Mathematical Society
Total Pages : 142
Release :
ISBN-10 : 9781470452285
ISBN-13 : 1470452286
Rating : 4/5 (85 Downloads)

Synopsis The Canonical Ring of a Stacky Curve by : John Voight

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Cancellation for surfaces revisited

Cancellation for surfaces revisited
Author :
Publisher : American Mathematical Society
Total Pages : 124
Release :
ISBN-10 : 9781470453732
ISBN-13 : 1470453738
Rating : 4/5 (32 Downloads)

Synopsis Cancellation for surfaces revisited by : H. Flenner

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Decorated Dyck Paths, Polyominoes, and the Delta Conjecture

Decorated Dyck Paths, Polyominoes, and the Delta Conjecture
Author :
Publisher : American Mathematical Society
Total Pages : 138
Release :
ISBN-10 : 9781470471576
ISBN-13 : 1470471574
Rating : 4/5 (76 Downloads)

Synopsis Decorated Dyck Paths, Polyominoes, and the Delta Conjecture by : Michele D’Adderio

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