# Category Archives: Geometry and Topology Today

## Ken Ono: Gems of Ramanujan and their Lasting Impact on Mathematics, Lecture 1

In this video, mathematician Ken Ono talks about the mathematical research of Ramanujan. This is the first of three lectures Ken gave as part of LSU’s Pasquale Porcelli Lecture Series. Continue reading

## Tim Nguyen: The Perturbative Approach to Path Integrals

In this video, Tim Nguyen gives an awesome explanation of part of a subject that Richard Feynman once claimed, “If you think you understand quantum mechanics, you don’t understand quantum mechanics.” Continue reading

## Mathematician Pallavi Dani – Divergence in Right-angled Coxeter Groups

LSU mathematician Pallavi Dani talks about using geometry to study problems in algebra and vice versa in her research. Continue reading

## Clayton Shonkwiler: Research Seminar on Applications of Geometry and Topology to Random Walks

Clayton Shonkwiler gives an advanced seminar on applications of geometry and topology to random walks/polygons and polymer physics. Continue reading

## Mathematician Clayton Shonkwiler: An Advanced Perspective

In this episode, Clayton Shonkwiler discusses random polygons at a graduate level, including why roughly 84% of all triangles are obtuse. Continue reading

## Mathematician Clayton Shonkwiler talks about Polymer Science

In this episode, we meet Clayton Shonkwiler, a mathematician from Colorado State University, who talks to us about applications of geometry and topology to the study of random polygons and polymer science. Continue reading

## Building the ⟨Sci|State⟩ Studio—a weekend in time lapse.

Watch how to build a sound/video stage with green screen and a light board at 15x speed. The studio is for videos like “Geometry and Topology Today.” Continue reading

## Adam Saltz speaks on an annular refinement of the transverse element in Khovanov homology

In this seminar video, Adam Saltz explains a recent result of his on transverse knots. Continue reading

## Testing out the new Green Screen (Plus a bonus 14×16 calculation)

Which background screen should we use for Geometry and Topology Today? Take the poll! Continue reading

## Meet Mathematician Jeremy Van Horn-Morris

In this episode we meet mathematician Jeremy Van Horn-Morris, who talks about some geometric and visual tools used to understand questions concerning the motion of particles. Continue reading

## Ben McCarty plays “Swing that Hammer”

Listen to mathematician Ben McCarty sing “Swing that Hammer” using a Breedlove guitar. Continue reading

## Meet Mathematician Aaron Lauda

What did mathematician Aaron Lauda do when he proved one of his big theorems? Watch and find out! Continue reading

## Interview with Thomas Lam on electrical networks

Today we talk with Thomas Lam, professor of mathematics at the University of Michigan, about electrical networks. Geometry and Topology Today is a “news show” on state-of-the-art mathematics research discussed for a general audience. Continue reading

## Line arrangements from an advanced perspective

We continue our conversation with mathematician Moshe Cohen, who now discusses line arrangements from an advanced perspective. Continue reading

## Interview with Moshe Cohen

Geometry and Topology Today is a “news show” on state-of-the-art mathematics research discussed for a general audience (including young people in high school). Today we talk with Moshe Cohen. Continue reading