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» On the Algebraic Structure of Convergence
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FPLE
1995
15 years 3 months ago
Explaining Algebraic Theory with Functional Programs
Abstract. A hierarchy of six important structures from abstract algebra (groups, rings, fields etc.) is introduced as Gofer class definitions and laws about them. Many instance d...
Jeroen Fokker
ITA
2008
111views Communications» more  ITA 2008»
14 years 12 months ago
A new algebraic invariant for weak equivalence of sofic subshifts
It is studied how taking the inverse image by a sliding block code affects the syntactic semigroup of a sofic subshift. Two independent approaches are used: -semigroups as recogni...
Laura Chaubard, Alfredo Costa
TGC
2010
Springer
14 years 9 months ago
An Algebra of Hierarchical Graphs
We define an algebraic theory of hierarchical graphs, whose axioms characterise graph isomorphism: two terms are equated exactly when they represent the same graph. Our algebra can...
Roberto Bruni, Fabio Gadducci, Alberto Lluch-Lafue...
DISCO
1993
156views Hardware» more  DISCO 1993»
15 years 4 months ago
Variant Handling, Inheritance and Composition in the ObjectMath Computer Algebra Environment
ObjectMath is a high-level programming environment and modeling language for scientific computing which supports variants and graphical browsing in the environment and integrates o...
Peter Fritzson, Vadim Engelson, Lars Viklund
FMCO
2005
Springer
15 years 5 months ago
Divide and Congruence: From Decomposition of Modalities to Preservation of Branching Bisimulation
We present a method for decomposing modal formulas for processes with the internal action τ. To decide whether a process algebra term satisfies a modal formula, one can check whe...
Wan Fokkink, Rob J. van Glabbeek, Paulien de Wind