Zobrazeno 1 - 10
of 51
pro vyhledávání: '"Jiong Sheng Li"'
Autor:
Jian Hua Yin1 yinjh@ustc.edu, Jiong Sheng Li2 lijs@ustc.edu.cn
Publikováno v:
Acta Mathematica Sinica. May2009, Vol. 25 Issue 5, p795-802. 8p.
Autor:
Hong-Hai Li1 lhh@mail.ustc.edu.cn, Jiong-Sheng Li2 lijs@ustc.edu.cn
Publikováno v:
Discussiones Mathematicae: Graph Theory. 2008, Vol. 28 Issue 2, p345-359. 15p. 1 Diagram, 1 Chart.
Autor:
Ping Wang1 wangping@gscas.ac.cn, Jiong Sheng Li2 lijs@ustc.edu.cn
Publikováno v:
Acta Mathematica Sinica. Oct2005, Vol. 21 Issue 5, p1087-1092. 6p.
Autor:
Jiong Sheng Li1 lijs@ustc.edu.cn, Yong Liang Pan1
Publikováno v:
Acta Mathematica Sinica. Sep2004, Vol. 20 Issue 5, p803-806. 4p.
Autor:
Yi-Zheng Fan, Jiong-Sheng Li
Publikováno v:
SIAM Journal on Matrix Analysis & Applications. 2002, Vol. 24 Issue 2, p475. 9p.
Autor:
Jiong Sheng Li, Jian Hua Yin
Publikováno v:
Acta Mathematica Sinica, English Series. 25:795-802
Erdos and Sos conjectured in 1963 that every graph G on n vertices with edge number e(G) > ½ (k − 1)n contains every tree T with k edges as a subgraph. In this paper, we consider a variation of the above conjecture, that is, for n ≥ 9/2 k2 + 37/
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::594360761f926f20da629ef18e7462b5
https://doi.org/10.1007/s10114-009-7260-2
https://doi.org/10.1007/s10114-009-7260-2
Publikováno v:
Linear and Multilinear Algebra. 56:627-638
Let G be a connected graph and be its normalized Laplacian matrix. Let λ1 be the second smallest eigenvalue of and f be its corresponding harmonic eigenfunction. In this article we investigate the properties of the harmonic eigenfunction f on blocks
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::25d8f94e148b7ffa06260e85e6c438a5
https://doi.org/10.1080/03081080601143090
https://doi.org/10.1080/03081080601143090
Publikováno v:
Applied Mathematics-A Journal of Chinese Universities. 23:240-244
A matrix A ∈ Mn(C) is called generalized normal provided that there is a positive definite Hermite matrix H such that HAH is normal. In this paper, these matrices are investigated and their canonical form, invariants and relative properties in the
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2a8a11f84c27ed0eacdaccc877f3edea
https://doi.org/10.1007/s11766-008-0215-z
https://doi.org/10.1007/s11766-008-0215-z
Autor:
Jian-Hua Yin, Jiong-Sheng Li
Publikováno v:
Discrete Mathematics. 307:1167-1177
A variation of a classical Turan-type extremal problem is considered as follows: determine the smallest even integer σ ( K r 1 , r 2 , … , r l , r , s , n ) such that every n -term graphic sequence π = ( d 1 , d 2 , … , d n ) with term sum σ (
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::55112edea179f871bec7f97c9a01214d
https://doi.org/10.1016/j.disc.2006.07.037
https://doi.org/10.1016/j.disc.2006.07.037
Autor:
Jiong Sheng Li, Jian Hua Yin
Publikováno v:
Acta Mathematica Sinica, English Series. 22:1133-1138
Let σ(k, n) be the smallest even integer such that each n–term positive graphic sequence with term sum at least σ(k, n) can be realized by a graph containing a clique of k + 1 vertices. Erdős et al. (Graph Theory, 1991, 439–449) conjectured th
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b3187ae925bea26cc9e10effc2e8d2b0
https://doi.org/10.1007/s10114-005-0676-4
https://doi.org/10.1007/s10114-005-0676-4