On monotone alternating inverse monoids

Citation:
Fernandes, Vítor H. "On monotone alternating inverse monoids." Afrika Matematika (DOI 10.1007/s13370-026-01497-9). 37 (2026): 95.

Abstract:

In this paper, we consider the inverse submonoids AM_n of monotone transformations and AO_n of order-preserving transformations of the alternating inverse monoid AI_n on a chain with n elements. We compute the cardinalities, describe the Green's structures and the congruences, and calculate the ranks of these two submonoids of AI_n.

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