Me with my son Dov when he was ε > 0 years old.
Dov at age K, where K is large
At the Casa Matématica Oaxaca Summer 2017, thinking hard about Polish groups; and gazing out over the ruins of nearby Monte Albán.
Hooding ceremony with my co-advisor Dr. Su Gao, May 2013.
Before and after summiting the Durrance Route of Devil's Tower, one of the fifty classic climbs of North America, with the NDSU crew Dr. Adnan Akyuz and Dr. Berlin Nelson, 9/27/14.
Leading "Hour of Power" in the Wichita Wildlife Refuge, July 2015. Photo by Brandon Hall. Trad is Rad!
At the summit of the Grand Teton (via Upper Exum Ridge) with Dr. Doğan Çömez, 9/22/19.