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ECEASST
2006
92views more  ECEASST 2006»
15 years 6 months ago
An MDA Framework Supporting OCL
We present an mda framework, developed in the functional programming language sml, that tries to bridge the gap between formal software development and the needs of industrial soft...
Achim D. Brucker, Jürgen Doser, Burkhart Wolf...
COMBINATORICS
1999
80views more  COMBINATORICS 1999»
15 years 6 months ago
On the Theory of Pfaffian Orientations. I. Perfect Matchings and Permanents
Kasteleyn stated that the generating function of the perfect matchings of a graph of genus g may be written as a linear combination of 4g Pfaffians. Here we prove this statement. ...
Anna Galluccio, Martin Loebl
EJC
2010
15 years 5 months ago
Exact solution of two classes of prudent polygons
Prudent walks are self-avoiding walks on a lattice which never step into the direction of an already occupied vertex. We study the closed version of these walks, called prudent po...
Uwe Schwerdtfeger
CPC
2010
101views more  CPC 2010»
15 years 4 months ago
Area Limit Laws for Symmetry Classes of Staircase Polygons
We derive area limit laws for the various symmetry classes of staircase polygons on the square lattice, in a uniform ensemble where, for fixed perimeter, each polygon occurs with ...
Uwe Schwerdtfeger, C. Richard, B. Thatte
ALIFE
2008
15 years 6 months ago
Natural Selection in Relation to Complexity
, reproductive value, soft selectionAbstract Structural complexity characterizes our representations of dissipative structures. As a mechanistic concept, when referred to natural s...
Stanley N. Salthe