SIGMAA-ARTS T-shirts
SIGMAA-ARTS Polygons T-shirt – Medium
$17.95
This T-shirt also commemorates the formation of the new SIGMAA on mathematics and the arts. This graphic, by Douglas Dunham, is based on the uniform tiling (4.5.4.5) of the hyperbolic plane with squares and pentagons subdivided into isosceles triangles. It was inspired by patterns of the Australian hooked rug maker Tony Bomford and a combinatorial pattern by H.S.M. Coxeter that provided the color symmetry. There are six "bright" colors and six shades of tan. Each bright color surrounding a pentagon is paired with the shade of tan not contained within that pentagon.
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SIGMAA-ARTS Polygons T-shirt – Large
$17.95
This T-shirt also commemorates the formation of the new SIGMAA on mathematics and the arts. This graphic, by Douglas Dunham, is based on the uniform tiling (4.5.4.5) of the hyperbolic plane with squares and pentagons subdivided into isosceles triangles. It was inspired by patterns of the Australian hooked rug maker Tony Bomford and a combinatorial pattern by H.S.M. Coxeter that provided the color symmetry. There are six "bright" colors and six shades of tan. Each bright color surrounding a pentagon is paired with the shade of tan not contained within that pentagon.
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