Results 111 to 120 of about 12,496 (147)

On the Number of Generalized Numerical Semigroups

Electronic Journal of Combinatorics, 2022
Let $\mathsf{r}_k$ be the unique positive root of $x^k - (x+1)^{k-1} = 0$. We prove the best known bounds on the number $n_{g,d}$ of $d$-dimensional generalized numerical semigroups, in particular that \[n_{g,d}>C_d^{g^{(d-1)/d}} \mathsf{r}_{2^d}^g\] for
Sean Li
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On Some Classes of Regular Semigroups

International Journal of Development Mathematics (IJDM)
In this paper we study and analyze the relationships between some special classes of regular semigroups, namely: Generalized inverse semigroups, Orthodox semigroups and locally inverse semigroups based on their idempotent properties.
A. Ibrahim, Chidozie Udeogu, B. I. Bukar
semanticscholar   +1 more source

Inverse Transversal Of Ordered Semigroups

Asian-European Journal of Mathematics
In this paper, we introduce the concept of an inverse transversal for regular ordered semigroups and explore several properties of such inverse transversals.
P. K. Minnumol, P. G. Romeo
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Denjoy-Wolff like set for rational semigroups

Afrika Matematika
In this paper, we introduce the concept of Denjoy-Wolff set in rational semigroups. We show that for finitely generated Abelian rational semigroups, the Denjoy-Wolff like set is countable.
Subham Chatterjee, G. Chakraborty, Tarun Kumar Chakra   +2 more
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Automatic semigroups vs automaton semigroups

International Colloquium on Automata, Languages and Programming, 2016
We develop an effective and natural approach to interpret any semigroup admitting a special language of greedy normal forms as an automaton semigroup,namely the semigroup generated by a Mealy automaton encoding the behaviour of such a language of greedy ...
Matthieu Picantin
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Quasimodular forms arising from Jacobi's theta function and special symmetric polynomials

Journal of combinatorial theory. Series A
Ramanujan derived a sequence of even weight $2n$ quasimodular forms $U_{2n}(q)$ from derivatives of Jacobi's weight $3/2$ theta function. Using the generating function for this sequence, one can construct sequences of quasimodular forms of all ...
T. Amdeberhan, L. Fel, Ken Ono
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The Solution of the Cosine–Sine Functional Equation on Semigroups

Results in Mathematics, 2023
B. Ebanks
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A Munn type representation for DRC-restriction semigroups

Periodica Mathematica Hungarica, 2023
Shou-feng Wang
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An Ehresmann-Schein-Nambooripad type theorem for DRC-semigroups

Semigroup Forum, 2022
Shou-feng Wang
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