Volume 13; Issue 1

Algebra Universalis

Volume 13; Issue 1
1

Topologies on products of partially ordered sets III: Order convergence and order topology

Marcel Erné
Journal:
Algebra Universalis
Year:
1981
Language:
english
File:
PDF, 885 KB
english, 1981
2

Projectives in a class of lattice ordered modules

Wayne B. Powell
Journal:
Algebra Universalis
Year:
1981
Language:
english
File:
PDF, 736 KB
english, 1981
3

Large invariant ideals on algebras

B. Weglorz
Journal:
Algebra Universalis
Year:
1981
Language:
english
File:
PDF, 729 KB
english, 1981
4

The number of non-isomorphic denumerable models of certain universal Horn classes

Steven Givant
Journal:
Algebra Universalis
Year:
1981
Language:
english
File:
PDF, 604 KB
english, 1981
6

The semilattice tensor product of projective distributive lattices

Harry Lakser
Journal:
Algebra Universalis
Year:
1981
Language:
english
File:
PDF, 173 KB
english, 1981
7

On lattices of congruences of relational systems and universal algebras

Jerzy Płonka
Journal:
Algebra Universalis
Year:
1981
Language:
english
File:
PDF, 250 KB
english, 1981
8

Varietors and machines in a category

J. Adámek, V. Trnková
Journal:
Algebra Universalis
Year:
1981
Language:
english
File:
PDF, 1.78 MB
english, 1981
9

A new proof of the McKenzie-Gumm Theorem

Ágnes Szendrei
Journal:
Algebra Universalis
Year:
1981
Language:
english
File:
PDF, 138 KB
english, 1981
10

On algebraic structures underlying the Poisson process

Joseph P. S. Kung
Journal:
Algebra Universalis
Year:
1981
Language:
english
File:
PDF, 444 KB
english, 1981
11

A variety generated by a finite algebra with 2x0subvarieties

Wieslaw Dziobiak
Journal:
Algebra Universalis
Year:
1981
Language:
english
File:
PDF, 385 KB
english, 1981
13

HSP K is equational class, without the axiom of choice

H. Andréka, I. Németi
Journal:
Algebra Universalis
Year:
1981
Language:
english
File:
PDF, 98 KB
english, 1981
14

Injective uniform structures

Brian J. Day
Journal:
Algebra Universalis
Year:
1981
Language:
english
File:
PDF, 155 KB
english, 1981
15

Residually small varieties of semigroups

Ralph McKenzie
Journal:
Algebra Universalis
Year:
1981
Language:
english
File:
PDF, 1.35 MB
english, 1981
16

Boolean centre of a universal algebra

U. M. Swamy, G. Suryanarayana Murti
Journal:
Algebra Universalis
Year:
1981
Language:
english
File:
PDF, 160 KB
english, 1981
17

A complete logic forn-permutable congruence lattices

George Hutchinson
Journal:
Algebra Universalis
Year:
1981
Language:
english
File:
PDF, 939 KB
english, 1981
18

Equationally definable PostL-algebras

Fawzi M. Yaqub
Journal:
Algebra Universalis
Year:
1981
Language:
english
File:
PDF, 348 KB
english, 1981
19

Thepn-sequences of idempotent algebras are strictly increasing

A. Kisielewicz
Journal:
Algebra Universalis
Year:
1981
Language:
english
File:
PDF, 788 KB
english, 1981
20

The lateral completion of an arbitrary lattice-ordered group (Bernau's proof revisited)

Stephen H. McCleary
Journal:
Algebra Universalis
Year:
1981
Language:
english
File:
PDF, 555 KB
english, 1981
21

A correction to “Definable principal congruences in varieties of groups and rings”

S. Burris, J. Lawrence
Journal:
Algebra Universalis
Year:
1981
Language:
english
File:
PDF, 105 KB
english, 1981
22

Endomorphism monoids containing all permutations

R. Birkenhead
Journal:
Algebra Universalis
Year:
1981
Language:
english
File:
PDF, 85 KB
english, 1981
23

Structural diversity in the lattice of equational theories

George F. McNulty
Journal:
Algebra Universalis
Year:
1981
Language:
english
File:
PDF, 1009 KB
english, 1981
24

Similarity types, pseudosimple algebras, and congruence representations of chains

Hajnal Andréka, István Németi
Journal:
Algebra Universalis
Year:
1981
Language:
english
File:
PDF, 546 KB
english, 1981
25

Hyperidentities of lattices and semilattices

P. Penner
Journal:
Algebra Universalis
Year:
1981
Language:
english
File:
PDF, 269 KB
english, 1981
26

The lattice structure of some Lukasiewicz algebras

Roberto Cignoli, Marta S. de Gallego
Journal:
Algebra Universalis
Year:
1981
Language:
english
File:
PDF, 608 KB
english, 1981
27

Finite groupoids without finite bases for their identities

Don Pigozzi
Journal:
Algebra Universalis
Year:
1981
Language:
english
File:
PDF, 1.11 MB
english, 1981
28

The structure of pseudo-semilattices

John Meakin, Francis Pastijn
Journal:
Algebra Universalis
Year:
1981
Language:
english
File:
PDF, 842 KB
english, 1981
29

Infinite chains of non-finitely based equational theories of finite algebras

George F. McNulty
Journal:
Algebra Universalis
Year:
1981
Language:
english
File:
PDF, 229 KB
english, 1981
30

On congruence lattices of somep-algebras and doublep-algebras

R. Beazer
Journal:
Algebra Universalis
Year:
1981
Language:
english
File:
PDF, 493 KB
english, 1981
31

Algebras and combinators

Erwin Engeler
Journal:
Algebra Universalis
Year:
1981
Language:
english
File:
PDF, 130 KB
english, 1981
32

On infinite subdirectly irreducible algebras in locally finite equational classes

Wiesław Dziobiak
Journal:
Algebra Universalis
Year:
1981
Language:
english
File:
PDF, 59 KB
english, 1981
33

Two characterizations of locally order-polynomially complete lattices

Ivan Chajda
Journal:
Algebra Universalis
Year:
1981
Language:
english
File:
PDF, 92 KB
english, 1981
34

A first order proof of a theorem of Frink

R. Padmanabhan
Journal:
Algebra Universalis
Year:
1981
Language:
english
File:
PDF, 115 KB
english, 1981
35

Neutrality in posets

M. Krishna Murty, G. C. Rao
Journal:
Algebra Universalis
Year:
1981
Language:
english
File:
PDF, 161 KB
english, 1981