**Previous Talks in the Discrete Geometry and Graph Theory
Seminar**

**Summer 2001**

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**Speaker: **Prof. Károly Bezdek, from Eötvös University,
Budapest, Hungary

**Time: **Tuesday, July 10, 2001; 2:30 PM to 3:30.

**Place: **Malott 224

**Title: **One sided Hadwiger numbers

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**Speaker: **Prof. Károly Bezdek, from Eötvös University,
Budapest, Hungary

**Time: **Tuesday, July 17, 2001; 2:30 PM to 3:30.

**Place: **Malott 224

**Title: **On the contact number of finite packings of translates
of convex bodies.

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**Speaker: **Prof. Veit Elser, Cornell Department of Physics

**Time: **Tuesday, July 24, 2001; 2:30 PM to 3:30.

**Place: **Malott 224

**Title: **Fun with fundamental domains

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**Speaker**: Prof. Joseph Zaks, from
the University of Haifa, Isreal

**Time**: Tuesday, July 31, 2001; 2:30 PM to 3:30.

**Place**: Malott 224

**Title**: The Beckman-Quarles Theorem for rational spaces

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**Speaker: **Prof. Mike Todd, Cornell Department of Operations Research
and Industrial Engineering

**Time: **Thursday, August 9, 2001; 2:30 PM to 3:30. (NOTE CHANGE
FROM TUESDAY TO THURSDAY.)

**Place: **Malott 224

**Title: **The Optimal Dissection of Simplces

**Abstract:** How can you "optimally" dissect simplices,
so that their diameters shrink at the fastest rate? Here, an n-simplex
is dissected by choosing any point of the simplex; it then splits into
from 1 to n+1 simplices, its children, with each the convex hull of the
new point and n of the vertices of its parent. In 1 dimension, bisection
is optimal. We will give bounds and near optimal schemes for general n.

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**Speaker: **Prof. Bob Connelly

**Time: **Tuesday, August 14, 2001; 2:30 PM to 3:30.

**Place: **Malott 224

**Title: **The Kneser-Poulsen
Conjecture in the Plane

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Back to the Bob Connelly's home page.

*Last updated: August 15, 2001*