Zobrazeno 1 - 10
of 110
pro vyhledávání: '"Hanyuan Deng"'
Publikováno v:
Electronic Journal of Mathematics, Vol 7, Pp 19-34 (2024)
Externí odkaz:
https://doaj.org/article/326b59bbf1c14e0e842fc96c79a3acc5
Publikováno v:
AIMS Mathematics, Vol 8, Iss 12, Pp 31186-31197 (2023)
For an integer $ h\geq 0 $, the $ h $th order Randić index for a simple graph $ G $ is defined as $ R^{h}(G) = \sum_{\pi}\frac{1}{\sqrt{v_1(\pi)v_2(\pi)\cdots v_{h+1}(\pi)}} $, where $ \pi $ extends over all paths of length $ h $ in $ G $ and $ v_i(
Externí odkaz:
https://doaj.org/article/11a2547ee5ca4df0a47c8e4821e17b46
Publikováno v:
Electronic Journal of Mathematics, Vol 5, Pp 29-45 (2023)
Externí odkaz:
https://doaj.org/article/8e368e213819417ca3fa7c1f225f9d1c
Publikováno v:
Discrete Mathematics Letters, Vol 10, Pp 14-20 (2022)
Externí odkaz:
https://doaj.org/article/e4bc29f163744c00993455c537a61c53
Autor:
Xin Liu, Hanyuan Deng, Qiaoqing Xu, Kai Luo, Jiang Zhou, Weihua Gao, Zhuoduo Wang, Haitao Zhang, Xiaoqiu Zhou
Publikováno v:
Aquaculture Reports, Vol 27, Iss , Pp 101380- (2022)
This study was conducted to investigate the effects of tea tree essential oil (TTO) supplementation in low fish meal diet on growth, lipid metabolism, anti-oxidant capacity and immunity of largemouth bass (Micropterus salmoides). Five low fish meal (
Externí odkaz:
https://doaj.org/article/b251f162127846eb81604b60eaf38b67
Publikováno v:
Discrete Mathematics Letters, Vol 9, Pp 2-9 (2021)
Externí odkaz:
https://doaj.org/article/963ff170051548cbbb6bb9bacf3bf625
Publikováno v:
Transactions on Combinatorics, Vol 9, Iss 3, Pp 125-138 (2020)
Let $G$ be a connected graph with vertex set $V(G)=\{v_1, v_2,\ldots,v_n\}$. The distance matrix $D=D(G)$ of $G$ is defined so that its $(i,j)$-entry is equal to the distance $d_G(v_i,v_j)$ between the vertices $v_i$ and $v_j$ of $G$. The
Externí odkaz:
https://doaj.org/article/80f5ccc2bd134ddc9dfefad2d4f0eee6
Publikováno v:
AKCE International Journal of Graphs and Combinatorics, Vol 17, Iss 1, Pp 25-37 (2020)
For a molecular graph, the first Zagreb index of a graph is equal to the sum of squares of the vertex degrees of the graph and the forgotten topological index (F-index) of a graph is defined as the sum of cubes of the vertex degrees of the graph. The
Externí odkaz:
https://doaj.org/article/6f079d1a918f4b3185297660204a8ac1
Publikováno v:
Electronic Journal of Graph Theory and Applications, Vol 7, Iss 2, Pp 365-372 (2019)
Let G be a connected graph with vertex set V(G). The Harary index of a graph is defined as H(G) = ∑u ≠ v 1/d(u, v), where d(u, v) denotes the distance between u and v. In this paper, we determine the extremal graphs with the maximum Harary index
Externí odkaz:
https://doaj.org/article/2a207d38e7584907b9bbdb6ced7425cc
Publikováno v:
Transactions on Combinatorics, Vol 6, Iss 4, Pp 43-50 (2017)
The eccentricity of a vertex is the maximum distance from it to another vertex and the average eccentricity $eccleft(Gright)$ of a graph $G$ is the mean value of eccentricities of all vertices of $G$. The harmonic index $Hleft
Externí odkaz:
https://doaj.org/article/0cf1dd9119174b93a65b9722e3516a68