Darrah Chavey
Darrah Chavey's Home Page
Professor of Mathematics & Computer Science  
Beloit College; 700 College St.; Beloit, Wisconsin  
email: chavey@beloit.edu  
Web: <http://www.beloit.edu/computerscience/faculty/chavey/>  
Ph.D., Mathematics, 1984, University of Wisconsin, Madison  
M.S., Computer Science, 1987, University of Wisconsin, Madison  


Research Papers:
For the abstract, a link to the full paper, and citations referencing the paper, click the title.
Ethnomathematics:
 Tchuka Ruma Solitaire, with P. Campbell, UMAP Journal, 16(4), (1995), pp. 343365.
 Ethnomathematics, with A. ShellGellasch, R. Chavey, and M. Ascher, MAA Focus 28(6), Aug. 2008, poster insert.
 Mathematical Experiments with African Sona Designs, Bridges Banff: Proceedings of the 12th Annual Bridges Conference, 2009.
 Constructing Symmetric Chokwe Sand Drawings, Symmetry: Culture and Science, 21(3), pp. 191206, Feb. 2010.
 Strip Symmetry Groups of African Sona Designs, Bridges: Pécs, July, 2010, pp. 111118.
 Symmetry Orbits: When Artists and Mathematicians Disagree, Bridges: Coimbra, July, 2011, pp. 337344.
 Central Africa and East Africa, articles in “Encyclopedia of Mathematics and Society”, ed. Sarah J. Greenwald & Jill E. Thomley, Nov. 2011, pp. 1317.
 Depression Glass and Nested Symmetry Groups, Bridges: Towson, July, 2012.
 Wallpaper Designs of Mirror Curves Inspired by African Sona, Bridges: Enschede, July, 2013, pp. 345352.
 Sona Geometry from Angola, Vol. 2, Written by Paulus Gerdes, translated (to English) by Darrah Chavey, additional appendices by D. Chavey. Published by Instituto Superior de Tecnologias e Gestão, Boane, Mozambique, Dec. 2013. Available from Lulu.
 Three Color "2 : 1 : 1" Designs, Bridges: Seoul. Bridges Between Math and the Arts, Aug. 2014
 with Monica Menzies Meissen, Todd O'Bryan and Glenn Terry, Double Strip Patterns: Between Strip Patterns and Wallpaper Patterns, Bridges 2015: Mathematics, Music, Art, Architecture, Culture, Aug. 2015, pp. 8592.
Tilings:
 Periodic Tilings and Tilings by Regular Polygons, Ph.D. Thesis, UWMadison, 1984.
 Periodic Tilings and Tilings by Regular Polygons I: Bounds on the Number of Orbits of Vertices, Edges, and Tiles, Mitteilungen aus dem Mathem. Seminar Giessen, 164(2), 1984, pp. 3750.
 Tilings by Regular Polygons II: A Catalog of Tilings, Computers & Mathematics with Applications, 17, (1989), pp. 147165.
 Tilings by Regular Polygons III: DodecagonDense Tilings. ”, Symmetry: Culture and Science, 25 (2014), No. 3, pp. 193210.
 Drawing Pictures with One Line: Exploring Graph Theory, 1992. Monograph in the HistoMap (High School Mathematics and Its Applications) series.
 The Politics of Course Time Slots, with P. Campbell and P. Straffin, UMAP Journal, 15(2), (1994), pp. 123136.
 How to call a crank a crank (and win if you get sued), with P. Campbell, Underwood Dudley, and Philip D. Strafﬁn. The UMAP Journal of Undergraduate Mathematics and Its Applications 29 (1) (2008) 59–74.
Computer Science:
 A Structured Lab Component for the Introductory Programming Course, SIGCSE Bulletin, 23(1), (1991), pp. 287295.
 A Multipurpose Computer Lab for a Small College, 1995. Proceedings of the User Services Conference, 1995, 23, pp. 6772.
 Songs and the Analysis of Algorithms, SIGCSE Bulletin, 27(1), (1996), pp. 48. Presented at the ACMSIGCSE Conference, March 1996.
 Double Sorting: Testing Their Sorting Skills, SIGCSE ’10: Proceedings of the 41^{st} ACM Technical Symposium on Computer Science Education, March 2010, pp. 381384.
Other Papers:
 Evangeline Walton: Interpreter of Myths, Aurora 9(1), (1984), pp. 3335.