Volume 44; Issue 1

Semigroup Forum

Volume 44; Issue 1
1

Normal skew lattices

Jonathan Leech
Journal:
Semigroup Forum
Year:
1992
Language:
english
File:
PDF, 512 KB
english, 1992
2

On power commutative semigroups

Daniel M. Davenport
Journal:
Semigroup Forum
Year:
1992
Language:
english
File:
PDF, 678 KB
english, 1992
3

k-ary monoids of term operations

Jennifer Hyndman, Ralph McKenzie, Walter Taylor
Journal:
Semigroup Forum
Year:
1992
Language:
english
File:
PDF, 1.48 MB
english, 1992
4

On varieties of combinatorial inverse semigroups II

Jiří Kaďourek
Journal:
Semigroup Forum
Year:
1992
Language:
english
File:
PDF, 1.42 MB
english, 1992
5

Continuité d'une action d'un semilattis compact

A. Bouziad
Journal:
Semigroup Forum
Year:
1992
File:
PDF, 387 KB
1992
6

Varieties of groupoids associated with involuted restrictive bisemigroups of binary relations

D. A. Bredikhin
Journal:
Semigroup Forum
Year:
1992
Language:
english
File:
PDF, 199 KB
english, 1992
7

Nil right ideals in inverse semigroup algebras

W. D. Munn
Journal:
Semigroup Forum
Year:
1992
Language:
english
File:
PDF, 121 KB
english, 1992
8

The alternating semigroups: Generators and congruences

Stephen L. Lipscomb
Journal:
Semigroup Forum
Year:
1992
Language:
english
File:
PDF, 476 KB
english, 1992
9

Sums of Idempotents in βN

John F. Berglund, Neil Hindman
Journal:
Semigroup Forum
Year:
1992
Language:
english
File:
PDF, 265 KB
english, 1992
10

Finiteness theorems for factorizations

Franz Halter-Koch
Journal:
Semigroup Forum
Year:
1992
Language:
english
File:
PDF, 257 KB
english, 1992
11

α-Inflatable semigroups

Hanson Umoh
Journal:
Semigroup Forum
Year:
1992
Language:
english
File:
PDF, 307 KB
english, 1992
12

On a type of matrix semigroup

J. S. Ponizovskiî
Journal:
Semigroup Forum
Year:
1992
Language:
english
File:
PDF, 223 KB
english, 1992
14

Report on the conference on semigroups held at Oberwolfach in 1991

John M. Howie
Journal:
Semigroup Forum
Year:
1992
Language:
english
File:
PDF, 106 KB
english, 1992
15

Announcement

Journal:
Semigroup Forum
Year:
1992
File:
PDF, 17 KB
1992
16

Inverse monoids and rational Schreier subsets of the free group

Stuart W. Marglis, John C. Meakin
Journal:
Semigroup Forum
Year:
1992
Language:
english
File:
PDF, 745 KB
english, 1992
17

p-Congruences onp-regular semigroups

M. K. Sen
Journal:
Semigroup Forum
Year:
1992
Language:
english
File:
PDF, 341 KB
english, 1992
18

The local semilattice of chains of idempotents

David Easdown, Mohan S. Putcha
Journal:
Semigroup Forum
Year:
1992
Language:
english
File:
PDF, 314 KB
english, 1992
19

The cardinalities of the Green classes of the free objects in varieties of bands

Helena Sezinando
Journal:
Semigroup Forum
Year:
1992
Language:
english
File:
PDF, 955 KB
english, 1992
20

Regular semigroups with a split map

M. Loganathan, V. M. Chandrasekaran
Journal:
Semigroup Forum
Year:
1992
Language:
english
File:
PDF, 689 KB
english, 1992
21

On the structure of certain po-semigroups

S. D. Hippisley-Cox
Journal:
Semigroup Forum
Year:
1992
Language:
english
File:
PDF, 382 KB
english, 1992
22

Closed ideals in semigroups of continuous selfmaps

A. M. Forouzanfar
Journal:
Semigroup Forum
Year:
1992
Language:
english
File:
PDF, 428 KB
english, 1992
23

Realization theorems for semigroups with divisor theory

Alfred Geroldinger, Franz Halter-Koch
Journal:
Semigroup Forum
Year:
1992
Language:
english
File:
PDF, 409 KB
english, 1992
24

Semigroup structures on βN

D. Strauss
Journal:
Semigroup Forum
Year:
1992
Language:
english
File:
PDF, 303 KB
english, 1992
25

On the representations of certain idempotent topological semigroups

J. W. Baker, M. Lashkarizadeh-Bami
Journal:
Semigroup Forum
Year:
1992
Language:
english
File:
PDF, 481 KB
english, 1992
26

Contractive presentations: A family of inverse monoids and semigroups with finiteR-classes

J. B. Stephen
Journal:
Semigroup Forum
Year:
1992
Language:
english
File:
PDF, 812 KB
english, 1992
28

Quasi-adequate semigroups II

Abdulsalam El-Qallali
Journal:
Semigroup Forum
Year:
1992
Language:
english
File:
PDF, 506 KB
english, 1992
29

The varieties of languages corresponding to the varieties of finite band monoids

Helena Sezinando
Journal:
Semigroup Forum
Year:
1992
Language:
english
File:
PDF, 771 KB
english, 1992
30

On left regular and left duopoe-semigroups

Niovi Kehayopulu
Journal:
Semigroup Forum
Year:
1992
Language:
english
File:
PDF, 337 KB
english, 1992
31

Magnifying elements in semigroups

Francesco Catino, Franco Migliorini
Journal:
Semigroup Forum
Year:
1992
Language:
english
File:
PDF, 328 KB
english, 1992
32

On inverse semigroups the closure of whose set of idempotents is a clifford semigroup

Bernd Billhardt
Journal:
Semigroup Forum
Year:
1992
Language:
english
File:
PDF, 477 KB
english, 1992
33

RC-commutative Δ-semigroups

Attila Nagy
Journal:
Semigroup Forum
Year:
1992
Language:
english
File:
PDF, 496 KB
english, 1992
34

On prime, weakly prime ideals in ordered semigroups

Niovi Kehayopulu
Journal:
Semigroup Forum
Year:
1992
Language:
english
File:
PDF, 230 KB
english, 1992
35

Centralizers in symmetric inverse semigroups: Structure and order

Stephen L. Lipscomb
Journal:
Semigroup Forum
Year:
1992
Language:
english
File:
PDF, 372 KB
english, 1992
36

Analyticity of the propagators of second order linear differential equations in Banach spaces

Xio Tijun, Liang Jin
Journal:
Semigroup Forum
Year:
1992
Language:
english
File:
PDF, 306 KB
english, 1992
38

Ordering D-classes and computing Schein rank is hard

George Markowsky
Journal:
Semigroup Forum
Year:
1992
Language:
english
File:
PDF, 145 KB
english, 1992
39

Nonreversibility of subsemigroups of semi-simple Lie groups

Luiz San Martin
Journal:
Semigroup Forum
Year:
1992
Language:
english
File:
PDF, 670 KB
english, 1992
40

Finite point compactifications of (ℕ, +)

S. D. Hippisley-Cox
Journal:
Semigroup Forum
Year:
1992
Language:
english
File:
PDF, 231 KB
english, 1992
41

On cardinalities of row spaces of Boolean matrices

Janusz Konieczny
Journal:
Semigroup Forum
Year:
1992
Language:
english
File:
PDF, 468 KB
english, 1992