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Chuck Cusack has been teaching in the Department of Computer Science at Hope since 2005 and began a joint appointment in the Department of Mathematics & Statistics in 2016. His favorite classes are theoretical/mathematical ones, especially those related to discrete mathematics, data structures and algorithms.

He is in charge of the Computer Science Help Center.

Areas of expertise

Chuck亚洲色吧檚 research interests include algorithms, graph theory and combinatorics. In recent years he has become very interested and active in creating mathematical and algorithmic art. He has created over 650 programs that have created over 3 million unique works of abstract mathematical art since 2022. He also creates abstract mathematical art using Lego and Pix Brix. He has earned both local and international awards for his art.

His more traditional research area is graph pebbling, a mathematical model that can be used to represent certain network optimization problems and has ties to number theory, as well as to some fundamental questions at the core of computer science. He uses both mathematical and algorithmic approaches in this work. He is particularly interested in something called Lemke graphs, and how they relate to an open problem in graph theory referred to as Graham亚洲色吧檚 Conjecture. He is one of the world's foremost experts in Lemke graphs, having identified all Lemke graphs with at most 10 vertices and disproved a long-held conjecture related to Lemke graphs.

Education

• Ph.D., computer science, University of Nebraska亚洲色吧揕incoln, 2000
• M.S., computer science, University of Nebraska亚洲色吧揕incoln, 1998
• M.S., discrete mathematics, Michigan Technological University, 1994
• B.S., pure mathematics, Michigan Technological University, 1992

Selected Publications

• 亚洲色吧淕raph Pebbling Algorithms and Lemke Graphs,亚洲色吧� with A. Green, M. Powers and A. Bekmetjev, Discrete Applied Mathematics, 262, 2019
• 亚洲色吧淭wo-pebbling and odd-two-pebbling are not equivalent,亚洲色吧� with M. Powers and A. Bekmetjev, Discrete Mathematics, 342 (3), 2019
• 亚洲色吧淒oppelgangers and Lemke graphs,亚洲色吧� with M. Powers and A. Bekmetjev, Discrete Mathematics, 341(10), 2018
• 亚洲色吧淢ultidesigns of Complete Graphs for Graph-Triples of Order 6,亚洲色吧� with S.E. Edwards and D.B. Parker, Journal of Combinatorial Mathematics and Combinatorial Computing, 94, 2015
• 亚洲色吧淭he complexity of pebbling reachability and solvability in planar and outerplanar graphs,亚洲色吧� with T. Lewis and L. Dion, Discrete Applied Mathematics, 172, 2014

View all of Charles Cusack亚洲色吧檚 published work on .

Recent Exhibitions

• 亚洲色吧�,亚洲色吧� October 2022亚洲色吧搊ngoing
• 亚洲色吧�,亚洲色吧� August 2022亚洲色吧搊ngoing
• 亚洲色吧�,亚洲色吧� January 2022亚洲色吧搊ngoing
• 亚洲色吧�,亚洲色吧� https://cusack.hope.edu/art/TulipTime. (November 2022 - ongoing).
• 亚洲色吧淭ulips, Windmills, and Mondrian,亚洲色吧� 2023 First Bloem Festival Artwork Competition Viewer亚洲色吧檚 Choice Exhibition, Holland, Michigan, May 6亚洲色吧�12, 2023
• 亚洲色吧�,亚洲色吧� ArtPrize, House Rules Lounge, Grand Rapids, Michigan, September 15亚洲色吧揙ctober 2, 2022

Outside the college

Chuck is a runner and disc golfer. He is an active member of the Holland Running Club and has served on the board of directors for the club for several years.