منابع مشابه
Tropical Descendant Gromov-witten Invariants
We define tropical Psi-classes on M 0,n (R 2 , d) and consider intersection products of Psi-classes and pull-backs of evaluations on this space. We show a certain WDVV equation which is sufficient to prove that tropical numbers of curves satisfying certain Psi-and evaluation conditions are equal to the corresponding classical numbers. We present an algorithm that generalizes Mikhalkin's lattice...
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There is an equation relating numbers of curves on F0 = P × P satisfying incidence conditions and numbers of curves on F2 satisfying incidence conditions. The purpose of this paper is to give a tropical proof of this equation (for some cases). We use two tropical methods. The first method proves the formula for rational curves. We use induction on the degree and two Kontsevich-type formulas for...
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In this paper, we consider weighted counts of tropical plane curves of particular combinatorial type through a certain number of generic points. We give a criterion, derived from tropical intersection theory on the secondary fan, for a weighted count to give a number invariant of the position of the points. By computing a certain intersection multiplicity, we show how Mikhalkin’s approach to co...
متن کاملDescendant Gromov-Witten Invariants, Simple Hurwitz Numbers, and the Virasoro Conjecture for IP
In this “experimental” research, we use known topological recursion relations in generazero, -one, and -two to compute the n-point descendant Gromov-Witten invariants of IP for arbitrary degrees and low values of n. The results are consistent with the Virasoro conjecture and also lead to explicit computations of all Hodge integrals in these genera. We also derive new recursion relations for sim...
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Class: ALoc Abstract Class: ADT Member Data: (none) Member Data: (none) Constructor: (none) Constructor: (none) Methods: (none) Methods: (none) Class Person Member Data: String name; Color eyeColor; int date; Constructor: Person(String n, Color c, int dob); Methods: (none) Class: EmptyLoc Class: ConsLoc Class: EmptyDT Class ConsDT Member Data: (none) Member Data: ADT first; ALoc rest; Member Da...
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ژورنال
عنوان ژورنال: manuscripta mathematica
سال: 2009
ISSN: 0025-2611,1432-1785
DOI: 10.1007/s00229-009-0256-5