no. 2
Object oriented institutions to specify symbolic computation systems
RAIRO - Theoretical Informatics and Applications - Informatique Théorique et Applications, Tome 41 (2007) no. 2, pp. 191-214.

The specification of the data structures used in EAT, a software system for symbolic computation in algebraic topology, is based on an operation that defines a link among different specification frameworks like hidden algebras and coalgebras. In this paper, this operation is extended using the notion of institution, giving rise to three institution encodings. These morphisms define a commutative diagram which shows three possible views of the same construction, placing it in an equational algebraic institution, in a hidden institution or in a coalgebraic institution. Moreover, these morphisms can be used to obtain a new description of the final objects of the categories of algebras in these frameworks, which are suitable abstract models for the EAT data structures. Thus, our main contribution is a formalization allowing us to encode a family of data structures by means of a single algebra (which can be described as a coproduct on the image of the institution morphisms). With this aim, new particular definitions of hidden and coalgebraic institutions are presented.

DOI : 10.1051/ita:2007015
Classification : 68Q65, 68Q60
Mots clés : institution, symbolic computation, specification, object orientation 
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Domínguez, César; Lambán, Laureano; Rubio, Julio. Object oriented institutions to specify symbolic computation systems. RAIRO - Theoretical Informatics and Applications - Informatique Théorique et Applications, Tome 41 (2007) no. 2, pp. 191-214. doi : 10.1051/ita:2007015. http://archive.numdam.org/articles/10.1051/ita:2007015/

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