In recognition of their career achievements, faculty members Karen Collins and Ellen Thomas were appointed to endowed professorships. Karen Collins, professor of mathematics, received an Edward Burr Van Vleck Professor of Mathematics, established in 1982. Collins joined Wesleyan’s department of mathematics in 1986 after receiving her BA from Smith College and her PhD from Massachusetts Institute of Technology. Her research focuses on graph theory, enumerative combinatorics, and algebraic combinatorics. Her most recent publication was “Split graphs and Nordhaus-Gaddum graphs” (Discrete Mathematics, 2016). She has served on several prize committees, most recently the committee for the 2016 George Polya Prize in…