On the ranks of certain finite semigroups of order-decreasing transformations.
Portugaliae Mathematica (1996)
- Volume: 53, Issue: 1, page 23-34
- ISSN: 0032-5155
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topUmar, Abdullahi. "On the ranks of certain finite semigroups of order-decreasing transformations.." Portugaliae Mathematica 53.1 (1996): 23-34. <http://eudml.org/doc/47476>.
@article{Umar1996,
author = {Umar, Abdullahi},
journal = {Portugaliae Mathematica},
keywords = {transformation semigroups; Stirling numbers; totally ordered finite sets; partial one-to-one maps; generating sets; rank},
language = {eng},
number = {1},
pages = {23-34},
publisher = {Sociedade Portuguesa de Matematica},
title = {On the ranks of certain finite semigroups of order-decreasing transformations.},
url = {http://eudml.org/doc/47476},
volume = {53},
year = {1996},
}
TY - JOUR
AU - Umar, Abdullahi
TI - On the ranks of certain finite semigroups of order-decreasing transformations.
JO - Portugaliae Mathematica
PY - 1996
PB - Sociedade Portuguesa de Matematica
VL - 53
IS - 1
SP - 23
EP - 34
LA - eng
KW - transformation semigroups; Stirling numbers; totally ordered finite sets; partial one-to-one maps; generating sets; rank
UR - http://eudml.org/doc/47476
ER -
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