Výsledky vyhledávání - "Cogolludo, José Ignacio"

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Free quotients of fundamental groups of smooth quasi-projective varieties

Autor: Cogolludo, Jose Ignacio, Libgober, Anatoly

We consider the structure of classes of curves on a projective simply connected surface for which fundamental groups of the complements admit free quotients having rank greater than one with irreducible components belonging to a selected subset the e

Externí odkaz: http://arxiv.org/abs/1904.00969

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Twisted Alexander polynomials of Plane Algebraic Curves

Autor: Cogolludo, Jose Ignacio, Florens, Vincent

We consider the Alexander polynomial of a plane algebraic curve twisted by a linear representation. We show that it divides the product of the polynomials of the singularity links, for unitary representations. Moreover, their quotient is given by the

Externí odkaz: http://arxiv.org/abs/math/0504356

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Pencils and Infinite Dihedral covers of P^2

Autor: Bartolo, E. Artal, Cogolludo, Jose Ignacio, Tokunaga, Hiro-o

Publikováno v: Proc. Amer. Math. Soc. 136 (2008), no. 1, 21-29

In this work we study the connection between the existence of finite dihedral covers of the projective plane ramified along an algebraic curve C, infinite dihedral covers, and pencils of curves containing C.
Comment: 1o pages

Externí odkaz: http://arxiv.org/abs/math/0411506

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Effective invariants of braid monodromy and topology of plane curves

Autor: Artal, Enrique, Carmona, Jorge, Cogolludo, Jose Ignacio

Publikováno v: Trans. Amer. Math. Soc. 359 (2007), no. 1, 165-183

In this paper we construct effective invariants for braid monodromy of affine curves. We also prove that, for some curves, braid monodromy determines their topology. We apply this result to find a pair of curves with conjugate equations in a number f

Externí odkaz: http://arxiv.org/abs/math/0105157

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Fundamental Group for some Cuspidal Curves

Autor: Cogolludo, Jose Ignacio

We construct a family of plane curves as pull-backs of a conic for abelian coverings of P^2. If the conic is tangent to the ramification lines one obtains a family of curves of degree 2n with 3n singularities of type A_{n-1}. We calculate the fundame

Externí odkaz: http://arxiv.org/abs/math/9809041

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Akademický článek

Pencils and Infinite Dihedral Covers of ℙ²

Autor: Bartolo, Enrique Artal, Cogolludo, José Ignacio, Tokunaga, Hiro-O.

Publikováno v: Proceedings of the American Mathematical Society, 2008 Jan 01. 136(1), 21-29.

Externí odkaz: http://dx.doi.org/10.1090/S0002-9939-07-08965-4

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MATHEMATICS WORKSHOPS: CHANGING THE PERCEPTIONS OF BOTH IN-SERVICEAND PROSPECTIVE TEACHERS WITH REGARD TO MATHEMATICS

Autor: Celi, Valentina, Cogolludo, José Ignacio, Garcia Catalán, Raquel, Gil Clemente, Elena, Lizasoain, Inmaculada, Millán Gasca, Ana Maria, Luigi, Regoliosi

Publikováno v: The 14th International Congress on Mathematical Education
The 14th International Congress on Mathematical Education, Jun 2021, Shanghai, China

International audience; In this paper, we present a new format for mathematical workshops for pre-service teachers (PSTs)that seek to bring their university mathematical training closer to the school classroom reality whileaddressing issues such as c

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=dedup_wf_001::70bb75e871fb8b4f1b512da3600110f2
https://hal.archives-ouvertes.fr/hal-02860135

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