The Geometry Center

The Geometry Center was a mathematics research and education center at the University of Minnesota. It was established by the National Science Foundation in the late 1980s and closed in 1998. The focus of the Center's work was the use of computer graphics and visualization for research and education in pure mathematics and geometry.[1]

The Center's founding director was Al Marden. Richard McGehee directed the Center during its final years. The Center's governing board was chaired by David P. Dobkin.[1]

Geomview

Much of the work done at the Center was for the development of Geomview, a three-dimensional interactive geometry program. This focused on mathematical visualization with options to allow hyperbolic space to be visualised. It was originally written for Silicon Graphics workstations, and has been ported to run on Linux systems; it is available for installation in most Linux distributions through the package management system. Geomview can run under Windows using Cygwin and under Mac OS X. Geomview has a web site at www.geomview.org.

Geomview is built on the Object Oriented Graphics Library (OOGL). The displayed scene and the attributes of the objects in it may be manipulated by the graphical command language (GCL) of Geomview. Geomview may be set as a default 3-D viewer for Mathematica.[2]

Geomview source is available at www.sourceforge.net, which also has a required Motif download. For Mac OS X users, www.macports.org provides a direct route to download and compile geomview.

Videos

Geomview was used in the construction of several mathematical movies including:

Other software

Other programs developed at the Center included:

Website

Richard McGehee, the center's director, has stated that the website was one of the first one hundred websites ever published.[3] Despite the Center being closed, its website is still online at as an archive of a wide range of geometric topics, including:

Geomview is supported through the dedicated Geomview website.

Support for software developed at the Geometry Center is available through Geometry Technologies.

Research

During its time of operation, a large number of mathematical workshops were held at the Center. Many well-known mathematicians visited the Center, including Eugenio Calabi, John Horton Conway, Donald E. Knuth, David Mumford, William Thurston, and Jeff Weeks. There were over thirty postdocs, apprentices and graduate students.

References

Coordinates: 44°58′25″N 93°14′02″W / 44.973606°N 93.233844°W / 44.973606; -93.233844

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