R. Keith Dennis

Roger Keith Dennis (March 10, 1944 – December 12, 2024), known as R. Keith Dennis or Keith Dennis, was an American mathematician who worked in algebraic K-theory and group theory. His career was spent as a professor in the Department of Mathematics at Cornell University. Dennis was the executive editor of Mathematical Reviews as it transitioned from a printed resource to a mainly-digital one.

Early life and career Dennis was born in Vernon, Texas, on March 10, 1944, and grew up on a farm 8 miles north of Quanah, Texas. He graduated from Quanah High School in 1962, and attended Rice University, earning his bachelor's in 1966 and his doctorate in 1970.

In 1971, Dennis joined the Department of Mathematics at Cornell University, and he was promoted to full professor in 1981. From 1987 to 1993 he served as the department chair. He retired to emeritus status in 2019.