First Observations on Prefab Posets Whitney Numbers

dc.creatorKwaśniewski, A. Krzysztof
dc.date2008-02-12
dc.date.accessioned2026-07-07T09:20:42Z
dc.date.available2026-07-07T09:20:42Z
dc.descriptionWe introduce a natural partial order in structurally natural finite subsets of the cobweb prefabs sets recently constructed by the present author. Whitney numbers of the second kind of the corresponding subposet which constitute Stirling like numbers triangular array are then calculated and the explicit formula for them is provided. Next, in the second construction we endow the set sums of prefabiants with such an another partial order that their Bell like numbers include Fibonacci triad sequences introduced recently by the present author in order to extend famous relation between binomial Newton coefficients and Fibonacci numbers onto the infinity of their relatives among whom there are also the Fibonacci triad sequences and binomial like coefficients (incidence coefficients included). The first partial order is F sequence independent while the second partial order is F sequence dependent where F is the so called admissible sequence determining cobweb poset by construction. An F determined cobweb posets Hasse diagram becomes Fibonacci tree sheathed with specific cobweb if the sequence F is chosen to be just the Fibonacci sequence. From the stand-point of linear algebra of formal series these are generating functions which stay for the so called extended coherent states of quantum physics. This information is delivered in the last section.
dc.description14 pages
dc.identifierhttps://arxiv.org/abs/0802.1696
dc.identifierhttp://arxiv.org/abs/0802.1696
dc.identifierAdvances in Applied Clifford Algebras Volume 18, Number 1 / February, 2008, 57-73
dc.identifierdoi:10.1007/s00006-007-0054-7
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/154806
dc.subjectCombinatorics
dc.subjectDiscrete Mathematics
dc.subject05C20 - 11C08 - 06A07
dc.titleFirst Observations on Prefab Posets Whitney Numbers
dc.typetext

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