## Student Science Training Program, San Diego State, Summer, 1971 |

This was a summer math program for HS students. My first exposure to real mathematical thinking and what made me want to become a mathematician. I'm in 3rd row up, 9th from left! Professor Deaton is in second row, far right. He taught us Euclidean geometry using Hilbert's Axioms, and did it Texas Style, a la R.L. Moore. |

## Southern California Topology Colloquium, Pomona College, April 21, 2018 |

1st Row: J. Scott Carter, Cornelia Van Cott, Sam Nelson, Matt Rathbun, Jozef Przytycki, Yi Ni, Terry Fuller, Ron Stern, Bob Brown |

Stairs: Dan Gottlieb, Jim Hoste, Daryl Cooper, Dave Bachman, Stephen Bigelow, Danny Ruberman, Blake Mellor, Patrick Shanahan, Aaron Bagheri, Mark Huber, Ryan Blair |

## Three Mathematical Generations |

Bob Brown, Ron Stern, Jim Hoste. Pitzer College, April 21, 2018 |