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Congruences of the semigroup ION (in Ukrainian) |
| Author |
V. O. Pyekhtyeryev, K. S. Trеtyak
vasiliy@univ.kiev.ua,
ch_slavka@ukr.net
КНУ iм.Тараса Шевченко
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| Abstract |
We describe congruences of the semigroup ION of
all order-preserving partial bijections on the set N with the natural order.
In particular, we prove that this semigroup contains only one non-Rees congruence. |
| Keywords |
congruence; natural order |
| Reference |
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| Pages |
22-27 |
| Volume |
35 |
| Issue |
1 |
| Year |
2011 |
| Journal |
Matematychni Studii |
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