高贵领导
发表于 2025-3-25 04:37:02
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
发表于 2025-3-25 10:20:05
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
放弃
发表于 2025-3-25 14:42:17
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Jogging
发表于 2025-3-25 16:01:51
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讥笑
发表于 2025-3-25 21:41:08
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.
开花期女
发表于 2025-3-26 02:11:30
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过多
发表于 2025-3-26 08:21:54
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.
鲁莽
发表于 2025-3-26 11:00:48
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Asymptomatic
发表于 2025-3-26 16:20:21
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协迫
发表于 2025-3-26 20:10:25
https://doi.org/10.1007/978-94-009-0925-0ATP; DNA; Nucleotide; RNA; biochemistry; skeleton; transcription