Algebraic categories whose projectives are explicitly free.
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Displaying 1 – 13 of 13
Cohomología respecto a una variedad de una categoría.
A. R.-Grandjean, A. Martínez Cegarra (1980)
Collectanea Mathematica
Constructions over tournaments
Jaroslav Ježek (2003)
Czechoslovak Mathematical Journal
We investigate tournaments that are projective in the variety that they generate, and free algebras over partial tournaments in that variety. We prove that the variety determined by three-variable equations of tournaments is not locally finite. We also construct infinitely many finite, pairwise incomparable simple tournaments.
Flatness in varieties of normal bands.
S. Bulman-Fleming, K. McDowell (1980)
Semigroup forum
Injectives in varieties of completely simple semigroups.
P.G. Trotter (1986)
Semigroup forum
Injectivity and Boolean Power.
Brian A. Davey, Heinrich Werner (1979)
Mathematische Zeitschrift
Injectivity in model theory
Paul D. Bacsich (1972)
Colloquium Mathematicae
Nonfree projectives in products of group varieties
V. Artamonov (1982)
Banach Center Publications
On the relationship between projective distributive lattices and Boolean algebras.
Ploščica, M. (1994)
Acta Mathematica Universitatis Comenianae. New Series
On von Neumann varieties.
Borceux, F., Rosický, J. (2004)
Theory and Applications of Categories [electronic only]
One-element extensions in the variety generated by tournaments
Jaroslav Ježek (2004)
Czechoslovak Mathematical Journal
We investigate congruences in one-element extensions of algebras in the variety generated by tournaments.
О самоинъективных дистрибутивных структурах
В.С. Корниенко (1979)
Sibirskij matematiceskij zurnal
Покрытия в скелетах эпиморфности многообразий алгебр
А.Г. Пинус (1988)
Algebra i Logika
Currently displaying 1 – 13 of 13
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