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Rodríguez Velasco, Gema ; Benavent Merchán, Maite ; Infante del Río, Juan Antonio ; Sobrón Fernández, María Inés ; Ortega Mallén, Yolanda ; Gómez Chacón, Inés María ; Giraldo Suárez, Luis ; González Pérez, Pedro ; Díaz Cano, Antonio ; Seoane Sepúlveda, Juan Benigno ; Folgueira López, Marta ; Carvajal García-Pando, Amador ; Cimadevilla Rodríguez, Javier | 2018-06-30Resumen del proyecto PIMCD 232 (2017) que presenta el diseño y uso de un sistema de seguimiento de egresados en la Facultad de Matemáticas para análisis de empleabilidad así como para información que valga para la mejora de las titulaciones.texto impreso
From the introduction: Let $X\subset\bbfP^n$ be a non-degenerate degree $d$ variety over the field of complex numbers, which is ruled by $k$-planes over a curve. Let us also suppose that there is no point of $X$ such that all the rules pass thro[...]texto impreso
Gallego Rodrigo, Francisco Javier ; Giraldo Suárez, Luis ; Sols, Ignacio | America Mathematical Society | 1996-10In this paper we provide a sharp bound for the dimension of a family of ruled surfaces of degree d in P3 K. We also _nd the families with maximal dimension: the family of ruled surfaces containing two unisecant skew lines, when d _ 9 and the fam[...]texto impreso
It is proved that any polynomial vector field in two complex variables which is complete on a non-algebraic trajectory is complete.texto impreso
In this paper the authors review some work relating the topology to algebraic invariants. Three cases are considered: hypersurfaces, vector fields and vector fields tangent to hypersurfaces. An example is the case of "real Milnor fibres". Let f[...]texto impreso
We introduce bilinear forms in a flag in a complete intersection local R-algebra of dimension 0, related to the Eisenbud-Levine, Khimshiashvili bilinear form. We give a variational interpretation of these forms in terms of Jantzen's filtration a[...]texto impreso
In this paper, we give the explicit construction of certain components of the space of holomorphic foliations of codimension one, in complex projective spaces. These components are associated to some algebraic representations of the affine Lie a[...]texto impreso
Let T and V be complex analytic spaces, with T reduced and locally irreducible and ?:T×V?T the projection map to the first factor. Let K ? be a complex 0?K n ? X n K n?1 ? X n?1 …? X 2 K 1 ? X 1 K 0 ?0 of O T×V coherent sheaves, whe[...]texto impreso
Rodríguez Velasco, Gema de Jesús ; Benavent Merchán, María Teresa ; Cabeza Llorca, Ana ; Carvajal García-Pando, Amador ; Cimadevilla Rodríguez, Francisco Javier ; Díaz-Cano Ocaña, Antonio ; Folgueira López, Marta ; García-Ochoa Roldán, María Luisa ; Giraldo Suárez, Luis ; Gómez Chacón, Inés María ; González Pérez, Pedro Daniel ; Infante del Río, Juan Antonio ; Ortega Mallén, Yolanda ; Seoane Sepúlveda, Juan Benigno | 2017-07-07texto impreso
Analysis of the question whether or not a given dynamical system has closed trajectories is of great importance for applications and represents independent theoretical interest. The authors give a new geometrical proof of the extension of the Be[...]texto impreso
Let X C P-N be an irreducible threefold having a hyperplane section Y that is a smooth Enriques surface and such that X is not a cone over Y. In 1938 Fano claimed a classification of such threefolds; however, due to gaps in his proof, the proble[...]texto impreso
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In this work, we begin by showing that a holomorphic foliation with singularities is reduced if and only if its normal sheaf is torsion-free. In addition, when the codimension of the singular locus is at least two, it is shown that being reduced[...]
