MATHEMATICS


POST-EUCLIDEAN WALKABOUT


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Description:

Post-Euclidean image (full size)

This real-time interactive CAVE application takes you on a visit to the post-Euclidean geometry of Gauss, Riemann, Klein, Poincare, and Thurston. Here you can walk into a rectangular dodecahedron, a shape which is possible only in negatively curved hyperbolic space. With a wand, you can summon and play with the snail-shaped 3D shadows of soap films in positively curved elliptic space. You can see how to sew the edges of hyperbolic octagons together into the surface of a 2-holed donut. The CAVE becomes a spaceship you can navigate with the wand, as it glides through the phantasmic shapes that populate the 3-sphere.

The purpose of this project is to perfect persuasive visual and sonic environments in which to exhibit geometrical wonders and their startling metamorphoses, which interest research geometers. Convincing visualizations of multi-dimensional, time-varying geometrical structures are equally useful in applied and pure mathematics.


Collaborators:


George Francis
Chris Hartman
    National Center for Supercomputing Applications and Department of Mathematics, University of Illinois at Urbana-Champaign


Joanna Mason

    Electronic Visualization Laboratory, University of Illinois at Chicago


Ulrike Axen
Alma Arias

    National Center for Supercomputing Applications and Computer Science Department, University of Illinois at Urbana-Champaign


Paul McCreary
Glenn Chappell

    Department of Mathematics, University of Illinois at Urbana-Champaign

Contact:

George Francis
    National Center for Supercomputing Applications
    University of Illinois at Urbana-Champaign
    Department of Mathematics
    1409 W. Green Street
    Urbana, IL 61801 USA
gfrancis@math.uiuc.edu

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