Author/Authors :
Albert، نويسنده , , M.H. and Aldred، نويسنده , , R.E.L. and Atkinson، نويسنده , , M.D. and Handley، نويسنده , , C. and Holton، نويسنده , , D.، نويسنده ,
Abstract :
We consider permutations of a multiset which do not contain certain ordered patterns of length 3. For each possible set of patterns we provide a structural description of the permutations avoiding those patterns, and in many cases a complete enumeration of such permutations according to the underlying multiset.
