Topological models for boundary representation: a comparison with n-dimensional generalized maps
Computer-Aided Design - Beyond solid modelling
Relational programming laws in the tree, list, bag, set hierarchy
Science of Computer Programming - Special issue on mathematics of program construction
Principles of programming with complex objects and collection types
ICDT '92 Selected papers of the fourth international conference on Database theory
A framework for the recursive definition of data structures
Proceedings of the 2nd ACM SIGPLAN international conference on Principles and practice of declarative programming
Theoretical Computer Science
PSLS '95 Proceedings of the International Workshop on Parallel Symbolic Languages and Systems
Declarative definition of group indexed data structures and approximation of their domains
Proceedings of the 3rd ACM SIGPLAN international conference on Principles and practice of declarative programming
NESL: A Nested Data-Parallel Language (Version 2.6)
NESL: A Nested Data-Parallel Language (Version 2.6)
Theory of Self-Reproducing Automata
Theory of Self-Reproducing Automata
UCNC'12 Proceedings of the 11th international conference on Unconventional Computation and Natural Computation
P systems controlled by general topologies
UCNC'12 Proceedings of the 11th international conference on Unconventional Computation and Natural Computation
A review of morphogenetic engineering
Natural Computing: an international journal
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In its initial presentation, the P system formalism describes the topology of the membranes as a set of nested regions. In this paper, we present an algebraic structure developped in combinatorial topology that can be used to describe finer adjacency relationships between membranes. Using an appropriate abstract setting, this technical device enables us to reformulate also the computation within a membrane and proposes a unified view on several computational mechanisms initially inspired by biological processes. These theoretical tools are instantiated in MGS, an experimental programming language handling various types of membrane structures in a homogeneous and uniform syntax.