caa a22 4500 445813717 CHVBK 20180317145219.0 cr unu---uuuuu 170323e20111101xx s 000 0 eng 10.1007/s11083-010-9182-0 doi (NATIONALLICENCE)springer-10.1007/s11083-010-9182-0 On the Non-existence of an R -labeling [Elektronische Daten] [Richard Ehrenborg, Margaret Readdy] We present a family of Eulerian posets which does not have any R-labeling. The result uses a structure theorem for R-labelings of the butterfly poset. Springer Science+Business Media B.V., 2010 R -labeling nationallicence Non-negative flag h -vector nationallicence Butterfly poset nationallicence Triple assignment nationallicence Breakpoint nationallicence Ehrenborg Richard Department of Mathematics, University of Kentucky, 40506-0027, Lexington, KY, USA aut Readdy Margaret Department of Mathematics, University of Kentucky, 40506-0027, Lexington, KY, USA aut Order Springer Netherlands 28/3(2011-11-01), 437-442 0167-8094 28:3<437 2011 28 11083 https://doi.org/10.1007/s11083-010-9182-0 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s11083-010-9182-0 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Ehrenborg Richard Department of Mathematics, University of Kentucky, 40506-0027, Lexington, KY, USA aut NATIONALLICENCE 700 1- Readdy Margaret Department of Mathematics, University of Kentucky, 40506-0027, Lexington, KY, USA aut NATIONALLICENCE 773 0- Order Springer Netherlands 28/3(2011-11-01), 437-442 0167-8094 28:3<437 2011 28 11083 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer