Tolkien (crater) Tolkien (crater) Tolkien are one of the northernmost craters on Mercury located at 88.82 S, 211.08 W and is inside the Borealis quadrangle. It is 125 km in diameter and named after the South African born British writer J. R. R. Tolkien, notable for The Lord of the Rings trilogy. The name was approved by IAU's Working Group for Planetary System Nomenclature on August 6, 2012. Nearby craters are Kandinsky to the west, Tryggvadóttir touches the northern rim, Chesterton almost to the east, a larger unnamed crater with a central peak to the southeast, then south and a smaller one
U. S. R. Murty U. S. R. Murty Uppaluri Siva Ramachandra Murty, or U. S. R. Murty (as he prefers to write his name), is a Professor Emeritus of the Department of Combinatorics and Optimization, University of Waterloo. U. S. R. Murty received his Ph.D. in 1967 from the Indian Statistical Institute, Calcutta, with a thesis on extremal graph theory; his advisor was C. R. Rao. Murty is well known for his work in matroid theory and graph theory, and mainly for being a co-author with J. A. Bondy of a textbook on graph theory. Murty has served as a managing editor and co-editor-in-chief