| Leo Butler |
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email: |
| School of Mathematics | phone: +44 (0)131 650 6757 | |
| 6214 James Clerk Maxwell Building | My PGP Key | |
| King's Buildings | ||
| The University of Edinburgh | ||
| Edinburgh, Scotland EH9 3JZ |
| CONTENTS | |
|---|---|
Fall 2009-Winter 2010: |
Research-related: |
| Dynamical Systems and Ergodic Theory | Edinburgh Topology Seminar |
| Dynamical Systems | Edinburgh Geometry Seminar |
| Mathematical communication and computation | Edinburgh Applied Maths Seminar |
| Plagiarism: advice and penalties | Research papers including preprints |
| Semester Dates | Talks |
| Ph.D. studies at Edinburgh | Maxima CAS packages |
| The Maslov Index | |
Mathematical Society Pages: |
Libraries: |
| AMS Mathscinet | KSPACE: a C++ library to compute invariants of Eschenburg spaces |
| Zentralblatt MATH | |
| European Maths Soc. | |
| Put maths the web: Unicode characters, database and MathML resources. | |
Other Links: |
Miscellaneous: |
| Susan Cooper | Greek alphabet |
| BBC's Weather in Edinburgh | T2* Hardware Maintenance Manual |
| Weather in San Luis Obispo -> | Humorous math solutions (Courtesy of Max Ruffert.) |
| Route 38 schedule | Edinburgh Restaurants edited by my colleague, Toby Bailey. |
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This is a single trajectory of a radially flexible, planar pendulum projected onto configuration space. The trajectory appears to fill out the entire energy level and appears to be non-integrable ... |
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Here is a typical geodesic on a torus embedded in 3-dimensional space. This particular geodesic flow is Liouville integrable, meaning in this case that the geodesic pictured here has two conserved quantities: its energy and the angular momentum about the vertical (red) axis which is commonly called the Clairaut first integral. The trajectory is integrated numerically with an algorithm due to Forest and Berz. |
| Geometry Center Animations |