Titlebook: Combinatorial Mathematics II; Proceedings of the S Derek A. Holton Conference proceedings 1974 Springer-Verlag Berlin Heidelberg 1974 Count

高貴領(lǐng)導(dǎo)

Sum-free sets, difference sets and cyclotomy,e set T such that S?T?G, we have S = T..Here we determine some sum-free cyclotomic classes in finite fields and from them, we construct new supplementary difference sets, association schemes and block designs. We also continue our study of locally maximal sum-free sets in groups of small orders and

Abutment

Williamson matrices of even order,ter are four (1,-1) matrices A,B,C,D, of order m, which pairwise satisfy (i) MN. = NM., M,N ε {A,B,C,D}, and (ii) AA.+BB.+CC.+DD. = 4mI., where I is the identity matrix. Currently Williamson matrices are known to exist for all orders less than 100 except: 35,39,47,53,59,65,67,70,71,73,76,77,83,89,94

放棄

Jogging

譏笑

Lecture Notes in Mechanical Engineering stability coefficient of G is . (G) = . (G)/|V(G)|. Making use of the above concepts, we characterise unions and joins of graphs which are semi-stable and enumerate trees with given stability index. Finally we investigate the problem of finding graphs with a given rational number as stability coefficient.

開花期女

過多

Shiyang Wang,Zhen Liu,Qingbo Herties of unique Moore-Penrose inverse of an arbitrary Boolean relation matrix are examined in connection with partial order relation and three computational methods for the unique Moore-Penrose inverse for an arbitrary Boolean relation matrix is developed.

魯莽

Asymptomatic

協(xié)迫

https://doi.org/10.1007/978-94-009-0925-0ATP; DNA; Nucleotide; RNA; biochemistry; skeleton; transcription