Non-standard analysis and hyperreal numbers

April 22, 2013

Speaker: Uri Andrews

Abstract Newton and Leibniz invented calculus using infinitesimals: positive numbers smaller than every positive real number. The math-world had come to reject the idea of infinitesimals on the (silly) grounds that no positive real number is smaller than every positive real number. We'll talk about how to fix that pesky problem and use infinitesimals to give a different approach to analysis.
Free Pizza will be served.

When: Monday, April 22, 4:35 p.m.
Where: Room 901 Van Vleck.

The Geometry of Molecules

April 29, 2013

Speaker: Julie Mitchell

Abstract All of us have grown up doing puzzles. But, did you know that your body works by matching the geometries of molecules? For example, this is how you become immune to a disease. Your immune system works to create a shape that is a match to the invader.

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