# Charles R. DePrima Memorial Lecture in Mathematics

**The Charles R. DePrima Memorial Undergraduate Mathematics Lecture was established by a gift from Charles R. DePrima and Margaret Thurmond DePrima. The Institute is privileged to honor the memory of Professor DePrima and his distinguished contribution to mathematics and Caltech, where he served as a faculty member for over forty years, with a lecture each year by an outstanding mathematician. Professor DePrima perceived that there were few or no special talks or seminars designed for undergraduates; he and Margaret DePrima intended that this lecture series would fill that need.**

"Symmetry Through Geometry"

"Hard Open Problems in Euclidean Geometry"

"Poincare's work on Topology"

"Geometrical Snapshots from Ancient Times to Modern Times"

"Undecidability in number theory"

2011/12 - Gunther L.M. Gornelissen

"Close Encounters with Tori"

"The Road Coloring Problem and Symbolic Dynamics"

"Zeta functions, periods and Diophantine equations"

"Tropical Mathematics"

"Extending N! to functions on the real and p-adic numbers, and their values at rational arguments"

"Baseball, Shakespeare and Modern Statistical Theory"

"Birthdays, Curses and Primes"

"Diophantus, Fermat and Beyond"

"Multivariable Calculus Made Easy"

"Can You Hear the Shape of a Network?"

"The Mathematics of Perfect Shuffles"

"The Shape of the Universe"

"How Math Might Save Your Life"

"Mathematical Anatomy of Video"

"Charlie DePrima and us"

1996/97 - Cathleen S. Morawetz

"Quadratic inequalities and their magical help"

"Partitions in number theory, geometry and graphs"

"What is the most surprising result in Mathematics"

"Information, Probability and the Uniqueness of You and Me"

1992/93 - Peter Lax

"Witty Mathematics"