Volume 12; Issue 1

Algebra Universalis

Volume 12; Issue 1
2

Modal operators on Heyting algebras

D. S. Macnab
Journal:
Algebra Universalis
Year:
1981
Language:
english
File:
PDF, 952 KB
english, 1981
3

Quasi-implication algebras, Part I: Elementary theory

Gary M. Hardegree
Journal:
Algebra Universalis
Year:
1981
Language:
english
File:
PDF, 642 KB
english, 1981
4

Quasi-implication algebras, Part II: Structure theory

Gary M. Hardegree
Journal:
Algebra Universalis
Year:
1981
Language:
english
File:
PDF, 798 KB
english, 1981
5

Subalgebra lattices of mono-unary algebras

Wiktor Bartol
Journal:
Algebra Universalis
Year:
1981
Language:
english
File:
PDF, 177 KB
english, 1981
6

Subdirectly irreducible pseudocomplemented de Morgan algebras

Anna Romanowska
Journal:
Algebra Universalis
Year:
1981
Language:
english
File:
PDF, 257 KB
english, 1981
7

On finite-modular atomistic lattices

Shûichirô Maeda
Journal:
Algebra Universalis
Year:
1981
Language:
english
File:
PDF, 179 KB
english, 1981
9

Categorical De Morgan laws

M. E. Szabo
Journal:
Algebra Universalis
Year:
1981
Language:
english
File:
PDF, 360 KB
english, 1981
10

Identities satisfied by convex linear forms

Ágnes Szendrei
Journal:
Algebra Universalis
Year:
1981
Language:
english
File:
PDF, 810 KB
english, 1981
11

On algebraically closed commutative indecomposable rings

K. P. Podewski, J. Reineke
Journal:
Algebra Universalis
Year:
1981
Language:
english
File:
PDF, 370 KB
english, 1981
12

Two multiplicative lattice examples

Johnny A. Johnson, Dottie Perez
Journal:
Algebra Universalis
Year:
1981
Language:
english
File:
PDF, 74 KB
english, 1981
14

Model completeness of some metric completions of absolutely free algebras

Jan Mycielski, Paul Perlmutter
Journal:
Algebra Universalis
Year:
1981
Language:
english
File:
PDF, 359 KB
english, 1981
15

Concrete categories and monoids of relational structures

S. Foldes, E. Mendelsohn
Journal:
Algebra Universalis
Year:
1981
Language:
english
File:
PDF, 153 KB
english, 1981
17

A lemma on flatness

B. Banaschewski
Journal:
Algebra Universalis
Year:
1981
Language:
english
File:
PDF, 294 KB
english, 1981
18

Finite sublattices of four-generated modular lattices

Bernhard Ganter, Werner Poguntke, Rudolf Wille
Journal:
Algebra Universalis
Year:
1981
Language:
english
File:
PDF, 556 KB
english, 1981
19

Identities in idempotent affine algebras

Ágnes Szendrei
Journal:
Algebra Universalis
Year:
1981
Language:
english
File:
PDF, 1.14 MB
english, 1981
20

A remark on diagonal algebras

A. Kisielewicz
Journal:
Algebra Universalis
Year:
1981
Language:
english
File:
PDF, 199 KB
english, 1981
21

In singular cardinality, locally free algebras are free

Wilfrid Hodges
Journal:
Algebra Universalis
Year:
1981
Language:
english
File:
PDF, 764 KB
english, 1981
22

Lattices of invariant subspaces of group representations

S. M. Vovsi
Journal:
Algebra Universalis
Year:
1981
Language:
english
File:
PDF, 94 KB
english, 1981
23

Epicompletel-groups

Marlow Anderson, Paul Conrad
Journal:
Algebra Universalis
Year:
1981
Language:
english
File:
PDF, 737 KB
english, 1981
24

Embedding modular lattices into relation algebras

Roger Maddux
Journal:
Algebra Universalis
Year:
1981
Language:
english
File:
PDF, 205 KB
english, 1981
25

Distributivity and modularity of lattices of tolerance relations

Ivan Chajda
Journal:
Algebra Universalis
Year:
1981
Language:
english
File:
PDF, 279 KB
english, 1981
26

Abstract characterization for the automorphism group acting on the subalgebra lattice

Isidore Fleischer
Journal:
Algebra Universalis
Year:
1981
Language:
english
File:
PDF, 75 KB
english, 1981
27

Molecules of a partially ordered set

Alexander Abian
Journal:
Algebra Universalis
Year:
1981
Language:
english
File:
PDF, 156 KB
english, 1981
28

Endomorphism semigroups of median algebras

H. -J. Bandelt
Journal:
Algebra Universalis
Year:
1981
Language:
english
File:
PDF, 123 KB
english, 1981
29

On the number of {Q, I}-closed classes of abelian p-groups

Joseph Buckley, James Wiegold
Journal:
Algebra Universalis
Year:
1981
Language:
english
File:
PDF, 106 KB
english, 1981
30

A single axiom for closure operations

Paul De Witte
Journal:
Algebra Universalis
Year:
1981
Language:
english
File:
PDF, 48 KB
english, 1981
31

Subfunctors of full embeddings of algebraiccategories

M. E. Adams, J. Sichler
Journal:
Algebra Universalis
Year:
1981
Language:
english
File:
PDF, 405 KB
english, 1981
32

Dimension and automorphism groups of lattices

L. Babai, D. Duffus
Journal:
Algebra Universalis
Year:
1981
Language:
english
File:
PDF, 509 KB
english, 1981
33

Cut elimination and word problems for varieties of lattices

Jürgen Schulte Mönting
Journal:
Algebra Universalis
Year:
1981
Language:
english
File:
PDF, 1.55 MB
english, 1981
34

On some identities valid in modular congruence varieties

Ralph Freese, Christian Herrmann, András P. Huhn
Journal:
Algebra Universalis
Year:
1981
Language:
english
File:
PDF, 561 KB
english, 1981
35

BnAmis universal iff point universal

D. M. Silberger
Journal:
Algebra Universalis
Year:
1981
Language:
english
File:
PDF, 339 KB
english, 1981
36

On filters and filter congruences in semilattices

P. V. Ramana Murty, V. Ramam
Journal:
Algebra Universalis
Year:
1981
Language:
english
File:
PDF, 430 KB
english, 1981
37

Join-prime elements in semidistributive lattices

H. S. Gaskill, J. B. Nation
Journal:
Algebra Universalis
Year:
1981
Language:
english
File:
PDF, 328 KB
english, 1981
38

Interval lattices and the amalgamation property

Joel Berman
Journal:
Algebra Universalis
Year:
1981
Language:
english
File:
PDF, 724 KB
english, 1981
39

Finitely subdirectly irreducible algebras with pseudocomplementation

R. Beazer
Journal:
Algebra Universalis
Year:
1981
Language:
english
File:
PDF, 551 KB
english, 1981
40

Distributivity of coproducts over products

B. A. Davey, H. Werner
Journal:
Algebra Universalis
Year:
1981
Language:
english
File:
PDF, 325 KB
english, 1981
41

Each Hamiltonian variety has the congruence extension property

Emil W. Kiss
Journal:
Algebra Universalis
Year:
1981
Language:
english
File:
PDF, 172 KB
english, 1981
42

Equationally compact algebras with bases of different cardinalities

Axel Kurka
Journal:
Algebra Universalis
Year:
1981
Language:
english
File:
PDF, 96 KB
english, 1981
43

Order-reversing maps and unique fixed points in complete lattices

Anders Björner
Journal:
Algebra Universalis
Year:
1981
Language:
english
File:
PDF, 90 KB
english, 1981