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Ci-dessous, les différences entre deux révisions de la page.

--- wiki:abstracts [2014/11/13 19:55] – serjl
+++ wiki:abstracts [2014/11/18 12:40] (Version actuelle) – serjl
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 **Ilia Zharkov**
 Title: Skeleta for affine surfaces
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 **Ilya Tyomkin**
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+Title: Applications of tropical geometry to the study of Severi varieties in arbitrary characteristic.��
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+Abstract: In my talk I’ll discuss the geometry of Severi varieties on toric surfaces. I’ll review the progress made during the past 5 years. In some problems the tropical point of view is very helpful, although the proofs and constructions can be made purely algebraically. In others, the tropical tools are the only currently available tools to obtain the results.
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 **Maksim Karev**
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+Title: Arnold's J^- -invariant and Kontsevich integral.��
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+Abstract: In 1994, V. Arnold has defined three order one invariants of smooth immersions S^1 --> R^2 related to three components of the discriminant subset in the space of immersions. One of these invariants, namely the one related to the discriminant component corresponding to the locus of immersions with a point of inverse self-tangency, is called J^- -invariant.��
+In my talk I will remind the definition of the J^- -invariant and explain its relation to configuration space integrals and Kontsevich integral.��
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+**Jens Forsgard**��
+��
+Title: Discriminants and Hyperfields

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