**Omega**: A Mathematica implementation of Partition Analysis¶

This package is part of the RISCErgoSum bundle. See Download and Installation.

## Short Description¶

`Omega`

is a Mathematica implementation of MacMahon’s Partition
Analysis carried out by Axel Riese, a Postdoc of the RISC
Combinatorics group. It has been developed together with George E.
Andrews and Peter Paule within the frame of a project initiated by
Andrews on the occasion of his sabbatical at RISC in spring 1998.

Partition Analysis is a computational method for solving problems in connection with linear homogeneous diophantine inequalities and equations, respectively. But as a matter of fact, MacMahon’s ideas have not received due attention with the exception of work by Richard Stanley. The object of the Omega project is to change this situation by demonstrating the power of MacMahon’s method in current combinatorial research.

The package has been developed by Axel Riese, a former member of the RISC Combinatorics group.

## Accompanying Files¶

You can also download the notebook that Axel Riese presented at the Special Functions 2000 conference in Tempe, Arizona:

## Literature¶

Partition Analysis has been originally described in

P.A. MacMahon,

Memoir on the theory of the partition of numbers - Part I, Phil. Trans. 187 (1897), 619-673,P.A. MacMahon,

Memoir on the theory of the partition of numbers - Part II, Phil. Trans. 192 (1899), 351-401,P.A. MacMahon,

Memoir on the theory of the partition of numbers - Part III, Phil. Trans. 205 (1906), 35-58,

and has been recapped in

P.A. MacMahon,

Collected Papers, Vol. 2, Number Theory, Invariants, and Applications (G.E. Andrews, ed.), MIT Press, Cambridge, 1986.

### How to refer to the Omega package?¶

The first description of the package can be found in the article

G.E. Andrews, P. Paule, and A. Riese,

MacMahon’s Partition Analysis III: The Omega Package, European J. Combin., 22 (2001), 887-904. [pdf]

Further articles of the Omega project:

G.E. Andrews and P. Paule,

MacMahon’s Partition Analysis IV: Hypergeometric Multisums, Sém. Lothar. Combin, B42i (1999), 1-24. [pdf]G.E. Andrews, P. Paule, A. Riese, and V. Strehl,

MacMahon’s Partition Analysis V: Bijections, Recursions, and Magic Squares, in Algebraic Combinatorics and Applications (A. Betten et al., eds.), pp. 1-39, Springer, 2001. [pdf]G.E. Andrews, P. Paule, and A. Riese,

MacMahon’s Partition Analysis VI: A New Reduction Algorithm, Ann. Comb., 5 (2001), 251-270. [pdf]G.E. Andrews, P. Paule, and A. Riese,

MacMahon’s Partition Analysis VII: Constrained Compositions, in q-Series with Applications to Combinatorics, Number Theory, and Physics (B.C. Berndt and K. Ono, eds.), Contemp. Math., Vol. 291, pp. 11-27, Amer. Math. Soc., 2001. [pdf]G.E. Andrews, P. Paule, and A. Riese,

MacMahon’s Partition Analysis VIII: Plane Partition Diamonds, Adv. in Appl. Math., 27 (2001), 231-242. [pdf]G.E. Andrews, P. Paule, and A. Riese,

MacMahon’s Partition Analysis IX: k-Gon Partitions, Bull. Austral. Math. Soc., 64 (2001), 321-329. [pdf]G.E. Andrews, P. Paule, and A. Riese,

MacMahon’s Partition Analysis X: Plane Partitions with Diagonals, SFB Report n. 2004-2, J. Kepler University, Linz, 2004. [pdf]G.E. Andrews, P. Paule, and A. Riese,

MacMahon’s Partition Analysis XI: Hexagonal Plane Partitions, SFB Report n. 2004-4, J. Kepler University, Linz, 2004. [pdf]