On coverings with special points and monodromy group a Weyl group of type Bd

被引：0
|
作者：
Vetro, Francesca [1 ]
机构：
[1] Univ Palermo, Dipartimento Energia Ingn Informaz & Modelli Mate, I-90128 Palermo, Italy
来源：
FILOMAT | 2014年 / 28卷 / 02期
关键词：
Hurwitz spaces; special fibers; branched coverings; monodromy; braid moves; HURWITZ SPACES; SPECIAL FIBERS; IRREDUCIBILITY; MODULI;
D O I：
10.2298/FIL1402275V
中图分类号：
O29 [应用数学];
学科分类号：
070104 ;
摘要：
In this paper we study Hurwitz spaces parameterizing coverings with special points and with monodromy group a Weyl group of type B-d. We prove that such spaces are irreducible if k > 3d - 3. Here, k denotes the number of local monodromies that are reflections relative to long roots.
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页码：275 / 284
页数：10
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