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APAL
2010
90views more  APAL 2010»
13 years 11 months ago
Canonical extensions for congruential logics with the deduction theorem
We introduce a new and general notion of canonical extension for algebras in the algebraic counterpart AlgS of any finitary and congruential logic S. This definition is logic-base...
Mai Gehrke, Ramon Jansana, Alessandra Palmigiano
ACS
2008
13 years 11 months ago
Covering Coalgebras and Dual Non-singularity
Abstract Localisation is an important technique in ring theory and yields the construction of various rings of quotients. Colocalisation in comodule categories has been investigate...
Christian Lomp, Virgínia Rodrigues
ACS
2010
13 years 11 months ago
Graded and Koszul Categories
Koszul algebras have arisen in many contexts; algebraic geometry, combinatorics, Lie algebras, non-commutative geometry and topology. The aim of this paper and several sequel paper...
Roberto Martínez-Villa, Øyvind Solbe...
TACS
1991
Springer
14 years 3 months ago
On Nets, Algebras and Modularity
We aim at a unified and coherent presentation of net models for concurrency like Petri nets and dataflow networks from the perspective of modularity and substitutivity. The major ...
Alexander Moshe Rabinovich, Boris A. Trakhtenbrot
WADT
1998
Springer
14 years 3 months ago
Semantic Constructions for Hidden Algebra
Abstract. Hidden algebra is a behavioural algebraic specification formalism for objects. It captures their constructional aspect, concerned with the initialisation and evolution of...
Corina Cîrstea
TPHOL
1999
IEEE
14 years 3 months ago
Universal Algebra in Type Theory
We present a development of Universal Algebra inside Type Theory, formalized using the proof assistant Coq. We define the notion of a signature and of an algebra over a signature. ...
Venanzio Capretta
LFCS
2009
Springer
14 years 4 months ago
A Bialgebraic Approach to Automata and Formal Language Theory
A bialgebra is a structure which is simultaneously an algebra and a coalgebra, such that the algebraic and coalgebraic parts are compatible. Bialgebras are usually studied over a ...
James Worthington
MFCS
2007
Springer
14 years 5 months ago
Semisimple Algebras of Almost Minimal Rank over the Reals
Abstract. A famous lower bound for the bilinear complexity of the multiplication in associative algebras is the Alder–Strassen bound. Algebras for which this bound is tight are c...
Markus Bläser, Andreas Meyer de Voltaire
CALCO
2009
Springer
163views Mathematics» more  CALCO 2009»
14 years 6 months ago
Algebras for Parameterised Monads
Abstract. Parameterised monads have the same relationship to adjunctions with parameters as monads do to adjunctions. In this paper, we investigate algebras for parameterised monad...
Robert Atkey
CALCO
2009
Springer
159views Mathematics» more  CALCO 2009»
14 years 6 months ago
Complete Iterativity for Algebras with Effects
Abstract. Completely iterative algebras (cias) are those algebras in which recursive equations have unique solutions. In this paper we study complete iterativity for algebras with ...
Stefan Milius, Thorsten Palm, Daniel Schwencke