%0 Journal Article %T Simplex, associahedron, and cyclohedron %A Martin Markl %J Mathematics %D 1997 %I arXiv %X The aim of the paper is to give an `elementary' introduction to the theory of modules over operads and discuss three prominent examples of these objects - simplex, associahedron (= the Stasheff polyhedron) and cyclohedron (= the compactification of the space of configurations of points on the circle). Keywords: (right) module over an operad, module associated to a cyclic operad, Koszul module over an operad. %U http://arxiv.org/abs/alg-geom/9707009v1