Hannes Krasser

Games on Triangulations (2009)

Oswin Aichholzer, David Bremner, Erik D. Demaine, Ferran Hurtado, Evangelos Kranakis, Hannes Krasser, ...

Abstract. We analyze several perfect-information combinatorial games played on planar triangulations. We introduce three broad categories of such games—constructing, transforming, and marking...

Geometric Games on Triangulations Extended Abstract (2009)

Oswin Aichholzer, David Bremner, Erik D. Demaine, Ferran Hurtado, Evangelos Kranakis, Hannes Krasser, ...

Let S be a set of n points in the plane, which we assume to be in general position, i.e., no three points of S lie on the same line. A triangulation of S is a simplicial decomposition of its convex...

Geometric Games on Triangulations Extended Abstract (2009)

Oswin Aichholzer, David Bremner, Erik D. Demaine, Ferran Hurtado, Evangelos Kranakis, Hannes Krasser, ...

1 Introduction Let S be a set of n points in the plane, which we assume to be in general position, i.e., no threepoints of S lie on the same line. A triangulation of S is a simplicial decomposition...

Playing with Triangulations (2008)

Oswin Aichholzer, David Bremner, Erik D. Demaine, Ferran Hurtado, Evangelos Kranakis, Hannes Krasser, ...

Abstract. We analyze several perfect-information combinatorial games played on planar triangulations. We introduce three broad categories of such games: constructing, transforming, and marking...

Geometric Games on Triangulations Extended Abstract (2008)

Oswin Aichholzer, David Bremner, Erik D. Demaine, Ferran Hurtado, Evangelos Kranakis, Hannes Krasser, ...

Let S be a set of n points in the plane, which we assume to be in general position, i.e., no three points of S lie on the same line. A triangulation of S is a simplicial decomposition of its convex...

Abstract (2008)

Oswin Aichholzer, Thomas Hackl, Birgit Vogtenhuber, Clemens Huemer, Ferran Hurtado, Hannes Krasser

We investigate the number of plane geometric, i.e., straight-line, graphs, a set S of n points in the plane admits. We show that the number of plane graphs and connected plane graphs as well as the...

Games on Triangulations (2008)

Oswin Aichholzer David, David Bremner, Erik D. Demaine, Ferran Hurtado, Evangelos Kranakis, Hannes Krasser, ...

We analyze several perfect-information combinatorial games played on planar triangulations. We introduce three broad categories of such games---constructing, transforming, and marking...

Playing with Triangulations (2007)

Oswin Aichholzer, David Bremner, Erik D. Demaine, Ferran Hurtado, Evangelos Kranakis, Hannes Krasser, ...

Abstract. We analyze several perfect-information combinatorial games played on planar triangulations. We introduce three broad categories of such games: constructing, transforming, and marking...

Towards Compatible Triangulations (2007)

Oswin Aichholzer, Franz Aurenhammer, Ferran Hurtado, Hannes Krasser

We state the following conjecture: any two planar n-point sets (that agree on the number of convex hull points) can be triangulated in a compatible manner, i.e., such that the resulting two planar...

On the number of plane graphs (2006)

Oswin Aichholzer, Thomas Hackl, Clemens Huemer, Ferran Hurtado, Hannes Krasser, Birgit Vogtenhuber

We investigate the number of plane geometric, i.e., straight-line, graphs, a set S of n points in the plane admits. We show that the number of plane graphs is minimized when S is in convex position,...

Abstract (2006)

O. Aichholzer, T. Hackl, C. Huemer, F. Hurtado, H. Krasser, B. Vogtenhuber, ...

We investigate the number of plane geometric, i.e., straight-line, graphs, a set S of n points in the plane admits. We show that the number of plane geometric graphs and connected plane geometric...

Robot Kinematics INDUSTRIAL Classical Geometry Computer Vision GEOMETRY Computer Aided Geometric Design Image Processing Abstract Transforming Spanning Trees and Pseudo-Triangulations ∗ (2006)

O. Aichholzer, F. Aurenhammer, C. Huemer, H. Krasser, Oswin Aichholzer, Franz Aurenhammer, ...

Let TS be the set of all crossing-free straight line spanning trees of a planar n-point set S. Consider the graph TS where two members T and T ′ of TS are adjacent if T intersects T ′ only in...

Transforming spanning trees and pseudo-triangulations (2006)

Oswin Aichholzer, Franz Aurenhammer, Clemens Huemer, Hannes Krasser

Let TS be the set of all crossing-free straight line spanning trees of a planar n-point set S. Consider the graph TS where two members T and T ′ of TS are adjacent if T intersects T ′ only in...

Convexity Minimizes Pseudo-Triangulations (2002)

Oswin Aichholzer, Franz Aurenhammer, Hannes Krasser, Bettina Speckmann

The number of minimum pseudo-triangulations is minimized for point sets in convex position.