@prefix dcat: <http://www.w3.org/ns/dcat#> .
@prefix dct: <http://purl.org/dc/terms/> .
@prefix foaf: <http://xmlns.com/foaf/0.1/> .
@prefix vcard: <http://www.w3.org/2006/vcard/ns#> .
@prefix xsd: <http://www.w3.org/2001/XMLSchema#> .

<https://rec.harvest-normandie.data4citizen.com/dataset/oai-hal-hal-00943622v1> a dcat:Dataset ;
    dct:description """
              In two recent papers (\\textit{Mathematical Research Letters,18(6):1163--1178,2011} and \\textit{European J. Combin.,33(8):1913--1918,2012}), Feigin proved that the Poincaré polynomials of the degenerate flag varieties have a combinatorial interpretation through the Dellac configurations, and related them to the $q$-extended normalized median Genocchi numbers $\\bar{c}_n(q)$ introduced by Han and Zeng, mainly by geometric considerations. In this paper, we give combinatorial proofs of these results by constructing statistic-preserving bijections between the Dellac configurations and two other combinatorial models of $\\bar{c}_n(q)$.
            """ ;
    dct:identifier "hal-00943622" ;
    dct:issued "2026-05-07T01:54:40.002383"^^xsd:dateTime ;
    dct:language "en" ;
    dct:modified "2026-05-07T01:54:40.002388"^^xsd:dateTime ;
    dct:publisher <https://rec.harvest-normandie.data4citizen.com/organization/cce9db95-46d9-4dc2-84b6-764215d0a002> ;
    dct:title "Combinatorial study of the Dellac configurations and the q-extended normalized median Genocchi numbers" ;
    dcat:contactPoint [ a vcard:Organization ;
            vcard:fn "CCSD" ] ;
    dcat:distribution <https://rec.harvest-normandie.data4citizen.com/dataset/oai-hal-hal-00943622v1/resource/d2b9ff5a-3ccf-40e1-a8a2-94a9f18cb3cd> ;
    dcat:keyword "dellac-configurations",
        "dellac-histories",
        "dumont-permutations",
        "genocchi-numbers",
        "infoeu-reposemanticspreprint",
        "mathmath-comathematics-mathcombinatorics-mathco",
        "preprints-working-papers-" ;
    dcat:landingPage <https://hal.science/hal-00943622> .

<https://rec.harvest-normandie.data4citizen.com/dataset/oai-hal-hal-00943622v1/resource/d2b9ff5a-3ccf-40e1-a8a2-94a9f18cb3cd> a dcat:Distribution ;
    dct:format "HTML" ;
    dct:issued "2026-05-07T01:54:40.012714"^^xsd:dateTime ;
    dct:modified "2026-05-07T01:54:39.994239"^^xsd:dateTime ;
    dct:title "Combinatorial study of the Dellac configurations and the q-extended normalized median Genocchi numbers" ;
    dcat:accessURL <https://hal.science/hal-00943622> .

<https://rec.harvest-normandie.data4citizen.com/organization/cce9db95-46d9-4dc2-84b6-764215d0a002> a foaf:Agent ;
    foaf:name "test_moissonnage_selune" .

<https://hal.science/hal-00943622> a foaf:Document .