Refining overpartitions by properties of non-overlined parts

Authors

  • Abdulaziz Alanazi University of Tabuk
  • Bashair Alenazi University of Tabuk
  • William Keith Michigan Technological University
  • Augustine Munagi University of the Witwatersrand

DOI:

https://doi.org/10.55016/ojs/cdm.v17i2.70452

Abstract

We study new classes of overpartitions of numbers based on the properties of non-overlined parts. Several combinatorial identities are established by means of generating functions and bijective proofs. We show that our enumeration function satisfies a pair of infinite Ramanujantype congruences modulo 3. Lastly, by conditioning on the overlined parts of overpartitions,
we give a seemingly new identity between the number of overpartitions and a certain class of ordinary partition functions. A bijective proof for this theorem also includes a partial answer to a previous request for a bijection on partitions doubly restricted by divisibility and frequency.

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Published

2022-12-29

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Section

Articles