Graph explorer

Remembering Leo

I do not remember when was the first time that I met Leo, but I have a clear memory of going to Leo's office on the 4th floor of Evans Hall to talk to him in my second year in Berkeley's Ph.D. program in 1986. The details of the conversation are not retained but a visual image of his clean and orderly office remains, in a stark contrast to a high entropy state of the same office now being used by myself.