𝔖 Bobbio Scriptorium
✦   LIBER   ✦

Enumeration of the square permutations in Sn

✍ Scribed by Joseph Blum

Publisher
Elsevier Science
Year
1974
Tongue
English
Weight
219 KB
Volume
17
Category
Article
ISSN
0097-3165

No coin nor oath required. For personal study only.

πŸ“œ SIMILAR VOLUMES

The Enumeration of Permutations with a P
The Enumeration of Permutations with a Prescribed Number of β€œForbidden” Patterns
✍ John Noonan; Doron Zeilberger πŸ“‚ Article πŸ“… 1996 πŸ› Elsevier Science 🌐 English βš– 219 KB

We initiate a general approach for the fast enumeration of permutations with a prescribed number of occurrences of ''forbidden'' patterns that seems to indicate that the enumerating sequence is always P-recursive. We illustrate the method completely in terms of the patterns ''abc, '' ''cab,'' and ''

Enumeration of Symmetry Classes of Conve
Enumeration of Symmetry Classes of Convex Polyominoes in the Square Lattice
✍ P. Leroux; E. Rassart; A. Robitaille πŸ“‚ Article πŸ“… 1998 πŸ› Elsevier Science 🌐 English βš– 544 KB

This paper concerns the enumeration of rotation-type and congruence-type convex polyominoes on the square lattice. These can be defined as orbits of the Ε½ groups ᑝ , of rotations, and α‘ž , of symmetries, of the square, acting on transla-4 4 . tion-type polyominoes. By virtue of Burnside's lemma, it i