Polynomials with palindromic and unimodal coefficients

Verfasser / Beitragende:
[Hua Sun, Yi Wang, Hai Zhang]
Ort, Verlag, Jahr:
2015
Enthalten in:
Acta Mathematica Sinica, English Series, 31/4(2015-04-01), 565-575
Format:
Artikel (online)
ID: 605461783
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024 7 0 |a 10.1007/s10114-015-4331-4  |2 doi 
035 |a (NATIONALLICENCE)springer-10.1007/s10114-015-4331-4 
245 0 0 |a Polynomials with palindromic and unimodal coefficients  |h [Elektronische Daten]  |c [Hua Sun, Yi Wang, Hai Zhang] 
520 3 |a Let f(q) = a r q r + ⋯ + a s q s , with a r ≠ 0 and a s ≠ 0, be a real polynomial. It is a palindromic polynomial of darga n if r + s = n and a r+i = a s−i for all i. Polynomials of darga n form a linear subspace $$\mathcal{P}_n (q)$$ of ℝ(q) n+1 of dimension $$\left\lfloor {\tfrac{n} {2}} \right\rfloor + 1$$ . We give transition matrices between two bases {q j (1 + q + ⋯ + q n−2j)}, {q j (1 + q) n−2j } and the standard basis {q j (1 + q n−2j)} of P n (q). We present some characterizations and sufficient conditions for palindromic polynomials that can be expressed in terms of these two bases with nonnegative coefficients. We also point out the link between such polynomials and rank-generating functions of posets. 
540 |a Institute of Mathematics, Academy of Mathematics and Systems Science, Chinese Academy of Sciences, Chinese Mathematical Society and Springer-Verlag Berlin Heidelberg, 2015 
690 7 |a Unimodal sequence  |2 nationallicence 
690 7 |a palindromic sequence  |2 nationallicence 
690 7 |a linear space  |2 nationallicence 
690 7 |a poset  |2 nationallicence 
700 1 |a Sun  |D Hua  |u School of Mathematical Sciences, Dalian University of Technology, 116024, Dalian, P. R. China  |4 aut 
700 1 |a Wang  |D Yi  |u School of Mathematical Sciences, Dalian University of Technology, 116024, Dalian, P. R. China  |4 aut 
700 1 |a Zhang  |D Hai  |u School of Mathematical Sciences, Dalian University of Technology, 116024, Dalian, P. R. China  |4 aut 
773 0 |t Acta Mathematica Sinica, English Series  |d Institute of Mathematics, Chinese Academy of Sciences and Chinese Mathematical Society  |g 31/4(2015-04-01), 565-575  |x 1439-8516  |q 31:4<565  |1 2015  |2 31  |o 10114 
856 4 0 |u https://doi.org/10.1007/s10114-015-4331-4  |q text/html  |z Onlinezugriff via DOI 
898 |a BK010053  |b XK010053  |c XK010000 
900 7 |a Metadata rights reserved  |b Springer special CC-BY-NC licence  |2 nationallicence 
908 |D 1  |a research-article  |2 jats 
949 |B NATIONALLICENCE  |F NATIONALLICENCE  |b NL-springer 
950 |B NATIONALLICENCE  |P 856  |E 40  |u https://doi.org/10.1007/s10114-015-4331-4  |q text/html  |z Onlinezugriff via DOI 
950 |B NATIONALLICENCE  |P 700  |E 1-  |a Sun  |D Hua  |u School of Mathematical Sciences, Dalian University of Technology, 116024, Dalian, P. R. China  |4 aut 
950 |B NATIONALLICENCE  |P 700  |E 1-  |a Wang  |D Yi  |u School of Mathematical Sciences, Dalian University of Technology, 116024, Dalian, P. R. China  |4 aut 
950 |B NATIONALLICENCE  |P 700  |E 1-  |a Zhang  |D Hai  |u School of Mathematical Sciences, Dalian University of Technology, 116024, Dalian, P. R. China  |4 aut 
950 |B NATIONALLICENCE  |P 773  |E 0-  |t Acta Mathematica Sinica, English Series  |d Institute of Mathematics, Chinese Academy of Sciences and Chinese Mathematical Society  |g 31/4(2015-04-01), 565-575  |x 1439-8516  |q 31:4<565  |1 2015  |2 31  |o 10114