TY  - BOOK
AU  - Lawson,Mark V
TI  - Inverse semigroups: the theory of partial symmetries 
SN  - 9810233167
AV  - QA182 .L39 1998
PY  - 1998///]
CY  - Singapore, River Edge, NJ
PB  - World Scientific
KW  - Inverse semigroups
N1  - Includes bibliographical references (pages 373-403) and index; Contents; Preface; 1. Introduction to inverse semigroups; 2. Extending partial symmetries; 3. The natural partial order; 4. Ordered groupoids; 5. Extensions of inverse semigroups; 6. Free inverse semigroups; 7. E-unitary inverse semigroups; 8. Enlargements; 9. O-E-unitary inverse semigroups; 10. Category actions and inverse semigroups; Bibliography; Index
ER  -