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In this paper we consider the problem of characterizing the directed graphs that admit an upward straight-line embedding into every point set in convex or in general position. In particular, we showâ€¦ (More)

- Alejandro Estrella-Balderrama, Elisabeth Gassner, Michael JÃ¼nger, Merijam Percan, Marcus Schaefer, Michael Schulz
- Graph Drawing
- 2007

We consider the following problem known as simultaneous geometric graph embedding (SGE). Given a set of planar graphs on a shared vertex set, decide whether the vertices can be placed in the plane inâ€¦ (More)

- Alejandro Estrella-Balderrama, J. Joseph Fowler, Stephen G. Kobourov
- Algorithmica
- 2009

Universal pointsets can be used for visualizing multiple relationships on the same set of objects or for visualizing dynamic graph processes. In simultaneous geometric embeddings, the same point inâ€¦ (More)

- Alejandro Estrella-Balderrama, JosÃ© Alberto FernÃ¡ndez-Zepeda, Anu G. Bourgeois
- 18th International Parallel and Distributedâ€¦
- 2004

Summary form only given. This paper considers fault-tolerance on the R-Mesh and LR-Mesh models. We propose a technique to identify a healthy submesh from a faulty model using the removal fault model.â€¦ (More)

- Alejandro Estrella-Balderrama, J. Joseph Fowler, Stephen G. Kobourov
- Graph Drawing
- 2006

Consider a graph G drawn in the plane so that each vertex lies on a distinct horizontal line `j = {(x, j) |x âˆˆ R}. The bijection Ï† that maps the set of n vertices V to a set of distinct horizontalâ€¦ (More)

- Carla Binucci, Emilio Di Giacomo, +4 authors Giuseppe Liotta
- 2009

In this paper we study the problem of computing an upward straight-line embedding of a directed graph G into a point set S, i.e. a planar drawing of G such that each vertex is mapped to a point of S,â€¦ (More)

- Alejandro Estrella-Balderrama, J. Joseph Fowler, Stephen G. Kobourov
- Graph Drawing
- 2008

Problems in simultaneous graph drawing involve the layout of several graphs on a shared vertex set. This paper describes a Graph Simultaneous Embedding Tool, GraphSET, designed to allow theâ€¦ (More)

- JosÃ© Alberto FernÃ¡ndez-Zepeda, Alejandro Estrella-Balderrama, Anu G. Bourgeois
- Int. J. Found. Comput. Sci.
- 2005

This paper proposes a procedure to design fault tolerant algorithms for the R-Mesh and some of its restrictive variations. This procedure first identifies a healthy sub-mesh from a faulty model usingâ€¦ (More)

- Mario Albrecht, Alejandro Estrella-Balderrama, +4 authors Michael Schulz
- Graph Drawing with Applications to Bioinformaticsâ€¦
- 2008

- Alejandro Estrella-Balderrama, J. Joseph Fowler, Stephen G. Kobourov
- Softw., Pract. Exper.
- 2010