5 citations · 6 across the 4 of their papers we have counts for
4 papers
On the exceptional locus of the birational projections of normal surface singularity into a plane
Jesus Fernandez-Sanchez
Given a normal surface singularity and a birational morphism to a non- singular surface , we investigate the local geometry of the exceptional divisor of $…
Equisingularity classes of birational projections of normal singularities to a plane
Maria Alberich-Carraminana, Jesus Fernandez-Sanchez
Given a birational normal extension S of a two-dimensional local regular ring R, we describe all the equisingularity types of the complete ideals J in R whose blowing-up has some p…
Geometry of the Kimura 3-parameter model
Marta Casanellas, Jesus Fernandez-Sanchez
The Kimura 3-parameter model on a tree of n leaves is one of the most used in phylogenetics. The affine algebraic variety W associated to it is a toric variety. We study its geomet…
On curves on sandwiched surface singularities
Jesus Fernandez-Sanchez
Fixed a point O on a non-singular surface S and a complete mO-primary ideal I in its local ring, the curves on the surface X obtained by blowing-up I are studied in terms of the ba…