Abstract
Given a continuous semiring A and a collection \(\mathfrak{H}\) of semiring morphisms mapping the elements of A into finite matrices with entries in A we define \(\mathfrak{H}\)-closed semirings. These are fully rationally closed semi-rings that are closed under the following operation: each morphism in \(\mathfrak{H}\) maps an element of the ,\(\mathfrak{H}\)-closed semiring on a finite matrix whose entries are again in this \(\mathfrak{H}\)-closed semiring. \(\mathfrak{H}\)-closed semirings coincide under certain conditions with abstract families of elements. If they contain only algebraic elements over some A′, A′ \(\subseteq\) A, then they are characterized by \(\Re \mathfrak{a}\mathfrak{t}\)(A′)-algebraic systems of a specific form. The results are then applied to formal power series and formal languages.
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Karner, G., Kuich, W. (1997). A characterization of abstract families of algebraic power series. In: Prívara, I., Ružička, P. (eds) Mathematical Foundations of Computer Science 1997. MFCS 1997. Lecture Notes in Computer Science, vol 1295. Springer, Berlin, Heidelberg. https://doi.org/10.1007/BFb0029976
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DOI: https://doi.org/10.1007/BFb0029976
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