A primitive, aperiodic substitution on d letters has at most d 2 asymptotic orbits; this bound is sharp. Since asymptotic arc components in tiling spaces associated with substitutions are in 1–1 correspondence with asymptotic words, this provides a bound for those as well.
General Description • Committee is standing • Number of members is approximately fourteen. The members shall consist of 3 Council members (chosen from the Vice Presidents and Members at Large), a member of the Editorial Boards Committee, a member of the Board of Trustees, the President, the Publisher and 4-6 at large members. The Secretary, Executive… (More)