Mehta, RanjanaRanjanaMehtaSaha, JoydipJoydipSahaSengupta, IndranathIndranathSengupta2025-08-282025-08-282022-02-01http://arxiv.org/abs/2202.12909http://repository.iitgn.ac.in/handle/IITG2025/20094We show that the minimal number of generators and the Cohen-Macaulay type of a family of numerical semigroups generated by concatenation of arithmetic sequences is unbounded.en-USBetti numbersNumerical semigroupsConcatenationCohen-MacaulayArithmetic sequencesUnboundedness of the first and the last Betti numbers of numerical semigroups segnerated by concatenatione-Printe-Print123456789/555