Nathaniel A. Friedman

In the early 2000s Nat organized the ISAMA (International Society for Art, Mathematics and Architecure) meetings in Chicago. He invited me to one and that´s how I met him. He was always very kind to everybody. In the mornings in the meetings, he himself brought the coffeecontainers and the donuts. The people who came invariably turned into his friends. In the evening he once invited us to dinner at his favorite restaurant near the conference site at DePaul University. He liked my crocheted...

Nat was a gentle, kind and thoughtful man. I have known him over 30 years. I am sad to just learn today of his passing from COVID. My memories of his brilliance and fascination for collecting unusual art will always bring a smile to my face. Carry on Nat...... you will not be forgotten.

When I was doing my dissertation research in philosophy of science, I realized I might benefit from learning some ergodic theory. Professor Friedman's _Introduction to Ergodic Theory_ was the first book I studied in depth. I found no other book as clear and as easy for a beginner like me. It was a joy to read, and I have fond memories of daily sessions working through the book during quiet mornings. Studying ergodic theory changed my dissertation research, and continues to influence my...

Nat invited me to the ISAMA conference in Chicago in 2011. He was very kind to each of the relatively small group of attendees and made everybody feel comfortable and helped many of us by publishing about our art work in the magazine Hyperseeing, which he published. Thank you, Nat!
My condolences to his family.

I am so sorry to hear of the loss of Nat. He was such a lovely man. I met him on the dancefloor where he so graciously took me under his wing and patiently taught me his favorite dance, the quickstep. I am so sorry we have lost him.

Dear family,
My deepest condolences on your loss. Nat was a kind, funny, fascinating person who will be greatly missed.
Betsy Katz Toohey