Gonality for stable curves and their maps with a smooth curve as their target
Edoardo Ballico
Open Mathematics, Tome 7 (2009), p. 54-58 / Harvested from The Polish Digital Mathematics Library
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Here we study the deformation theory of some maps f: X → ℙr , r = 1, 2, where X is a nodal curve and f|T is not constant for every irreducible component T of X. For r = 1 we show that the “stratification by gonality” for any subset of [...] with fixed topological type behaves like the stratification by gonality of M g.

Publié le : 2009-01-01
EUDML-ID : urn:eudml:doc:269390 
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     author = {Edoardo Ballico},
     title = {Gonality for stable curves and their maps with a smooth curve as their target},
     journal = {Open Mathematics},
     volume = {7},
     year = {2009},
     pages = {54-58},
     zbl = {1174.14029},
     language = {en},
     url = {http://dml.mathdoc.fr/item/bwmeta1.element.doi-10_2478_s11533-008-0063-3}
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Edoardo Ballico. Gonality for stable curves and their maps with a smooth curve as their target. Open Mathematics, Tome 7 (2009) pp. 54-58. http://gdmltest.u-ga.fr/item/bwmeta1.element.doi-10_2478_s11533-008-0063-3/

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