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pro vyhledávání: '"Nian-Zu Li"'
Autor:
Nian-Zu Li, 李念祖
99
The marketing price of atydae shrimp(cherry shrimp, Neocaridina denticulata) is greatly influenced by its pigmentation, which is directly influenced by changes in chromatophores.In this thesis, effects of background lightness, hue, illuminati
The marketing price of atydae shrimp(cherry shrimp, Neocaridina denticulata) is greatly influenced by its pigmentation, which is directly influenced by changes in chromatophores.In this thesis, effects of background lightness, hue, illuminati
Externí odkaz:
http://ndltd.ncl.edu.tw/handle/33605770739427195371
Autor:
Nian-Zu Li, Chengfu Ye
Publikováno v:
Discrete Mathematics. 259:369-381
In this paper, using the properties of chromatic polynomial and adjoint polynomial, we characterize all graphs having chromatic polynomial ∑l⩽m0lm0−l(λ)l.
Publikováno v:
Discrete Mathematics. 172(1-3):9-16
Let q be a positive integer. A graph G is said to be a q-graph if it contains a q-tree as one of its spanning subgraphs. A connected graph is a 1-graph. (1) We prove that if G is a q-graph with |V(G)| > q, then the multiplicity of the root q of the c
Publikováno v:
Discrete Mathematics. 172(1-3):79-84
A tree is called a tree of T -shape if its degree sequence is (1,1,1,2,2, …, 2,3). In this paper, we prove that the complement of the disjoint union of any number copies of a kind of tree of T -shape is chromatically unique by studying its adjoint
Autor:
Nian-Zu Li
Publikováno v:
Discrete Mathematics. 172:193-221
Autor:
Earl Glen Whitehead, Nian-Zu Li
Publikováno v:
Discrete Mathematics. 122:365-372
Let W(n, k) denote the graph of order n obtained from the wheel Wn by deleting all but k consecutive spokes. In this note, we study the chromaticity of graphs which share certain properties of W(n, 6) which can be obtained from the coefficients of th
Autor:
Nian-Zu Li
Publikováno v:
Discrete Mathematics. 110:185-196
Frucht and Giudici classified all graphs having quadratic σ-polynomials. Dhurandhar characterized all graphs having quadratic and cubic σ-polynomials. Here, we give a necessary and sufficient condition for the graphs whose σ-polynomials are of deg
Autor:
Nian-Zu Li, Earl Glen Whitehead
Publikováno v:
Discrete Mathematics. 104:197-199
Xu and Li proved the chromatic uniqueness of wheels on an odd number of vertices. It is known that the wheels on six vertices and eight vertices are not chromatically unique. Read found that the wheel on ten vertices is chromatically unique by comput
Autor:
Earl Glen Whitehead, Nian-Zu Li
Publikováno v:
Annals of the New York Academy of Sciences. 576:328-335
Autor:
Chong-Yun Chao, Nian-Zu Li
Publikováno v:
Archiv der Mathematik. 45:180-185