Algebra universalis

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  Año 2018, Vol. 79, Número 2. Texto Completo Ejemplar

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    Coset relation algebras

    Hajnal Andréka, Steven Givant

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    Axiomatisability and hardness for universal Horn classes of hypergraphs

    Lucy Ham, Marcel Jackson

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    Special elements of the lattice of monoid varieties

    Sergey V. Gusev

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    Unique inclusions of maximal C-clones in maximal clones

    Mike Behrisch, Edith Vargas García

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    Maximal essential extensions in the context of frames

    Richard N. Ball, Ales Pultr

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    The convolution algebra

    John Harding, Carol L. Walker, Elbert Walker

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    Homomorphisms from C(X,Z) into a ring of continuous functions

    Ali Reza Olfati

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    Polymorphism clones of homogeneous structures: gate coverings and automatic homeomorphicity

    Christian Pech, Maja Pech

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    An error in a proof in Boolean Algebras with Operators, Part I

    Richard Kramer, Roger D. Maddux

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    Chains, antichains, and complements in infinite partition lattices

    James Emil Avery, Jean-Yves Moyen, Pavel Ruzicka, Jakob Grue Simonsen

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    Quasiorder lattices of varieties

    Gergo Gyenizse, Miklós Maróti

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    Infinite idempotent quasi-affine algebras need not be hereditarily absorption free

    Joe Cyr

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    Congruence structure of planar semimodular lattices: the General Swing Lemma

    Gábor Czédli, George Grätzer, Harry Lakser

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    On classes of structures axiomatizable by universal d-Horn sentences and universal positive disjunctions

    Guillermo Badia, João Marcos

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    A conference report: The 5th Novi Sad Algebraic Conference (in conjunction with AAA94)

    Igor Dolinka

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    Infinitely many reducts of homogeneous structures

    Bertalan Bodor, Peter J. Cameron, Csaba Szabó

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    Congruence meet-semidistributive locally finite varieties and a finite basis theorem

    George F. McNulty, Ross Willard

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    Polymorphism clones of homogeneous structures: generating sets, Sierpiński rank, cofinality and the Bergman property

    Christian Pech, Maja Pech

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    A refinement of the equaclosure operator

    J. B. Nation, Joy Nishida

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    A Gelfand duality for compact pospaces

    Laurent De Rudder, Georges Hansoul

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