2008
DOI: 10.1002/mana.200510655
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Equations of Hurwitz schemes in the infinite Grassmannian

Abstract: The main result proved in the paper is the computation of the explicit equations defining the Hurwitz schemes of coverings with punctures as subschemes of the Sato infinite Grassmannian. As an application, we characterize the existence of certain linear series on a smooth curve in terms of soliton equations.

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Cited by 4 publications
(10 citation statements)
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“…Following [MP2] and [Ma], we consider the u-th Baker-Akhiezer function of a point U ∈ Gr(V ) as the V -valued function defined by…”
Section: A Formal Group Schemesmentioning
confidence: 99%
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“…Following [MP2] and [Ma], we consider the u-th Baker-Akhiezer function of a point U ∈ Gr(V ) as the V -valued function defined by…”
Section: A Formal Group Schemesmentioning
confidence: 99%
“…holds for all 1 ≤ v, u ≤ p and all t, s (for notation and results see [MP2,§3]). This hierarchy is essentially equivalent to the p-multicomponent KP hierarchy ( [KvdL]).…”
Section: Wherementioning
confidence: 99%
“…In order to give the equations describing Higgs ∞ X , we first need to adapt some results concerning Tau and Baker-Akhiezer functions given in [2,13,12].…”
Section: ((Z))[t ]/P(t ) and V + P := K[[z]][t ]/P(t )mentioning
confidence: 99%
“…Moreover, the formal Jacobian of the formal spectral curve X V , J ( X V ), is isomorphic to Γ − Vp (see [2,Theorem 4.14] and also [12]). Let A ∞ be the formal group scheme …”
Section: Formal Jacobian and Abel Morphismmentioning
confidence: 99%
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