Báo cáo toán học: "On STD6[18, 3]’s and STD7[21, 3]’s admitting a semiregular automorphism group of order 9" doc

... admitting a semiregular automorphism group of order 9 Kenzi Akiyama Department of Applied Mathematics Fukuoka University, Fukuoka 814-0180, Japan akiyama@sm.fukuoka-u.ac.jp Masayuki Ogawa Computer Engineering ... generalized Hadamard matrices of order 3 and 6 over a group of order 3. The existence of STD 2 [2λ, 2]’s is equivalent to the existence of Hadamard...

Ngày tải lên: 08/08/2014, 01:20

... #R30 6 G is an arbitrary graph, as a linear combination of Pfaffians of matrices associated with relevant orientations of G. When G is a bipartite graph like the cubic lattice, the Pfaffians may be turned ... by a path. Call each edge of this path auxiliary. 3. We again associate variable a with each auxiliary edge e and we let w(e)=1. 4. The edges h xyz , x even and z even wi...

Ngày tải lên: 07/08/2014, 06:23

... & Statistics, King Fahd University of Petroleum and Minerals, Dhahran 31261, Saudi Arabia 2 Department of Mathematical Sciences, The University of Texas at El Paso, El Paso, TX 79968, USA Authors’ ... and S be two self-maps of a partially ordered set X. The pair (S, T) is called symmetric Banach operat or pair if both (S, T) and (T, S) are Ba nach operator pairs, i.e., T(F...

Ngày tải lên: 20/06/2014, 21:20

...

Ngày tải lên: 05/08/2014, 10:20

...

Ngày tải lên: 05/08/2014, 15:20

... dimension of graphs Jos´e C´aceres ∗ Department of Statistics and Applied Mathematics University of Almer´ a, Almer´ a, Spain jcaceres@ual.es Delia Gar ijo ∗ Department of Applied Mathematics I University ... I University of Seville, Seville, Spain dgarijo@us.es Mar´ a Luz P uertas ∗ Department of Statistics and Applied Mathematics University of Almer´ a, Almer´ a, Spain mp...

Ngày tải lên: 08/08/2014, 12:22

... Planar and infinite hypohamiltonian and hypotraceable graphs. Dis- crete Mathematics 14, 377–389. (1976) [15] Thomassen, C.: Hypohamiltonian graphs and digraphs. in: Theory and Applications of ... hypohamiltonia n graphs G and H that can be seen in Figure 1 and Figure 2, respectively. Theorem 2.3. G and H are cubic planar hypohamiltonian graphs. Proof. Both G and H are obviou...

Ngày tải lên: 08/08/2014, 14:23

... Shioda T, Kato H, Ohnishi Y, Tashiro K, Ikegawa M, Nakayama EE, Hu H, Kato A, Sakai Y, Liu H, et al.: Anti-HIV-1 and chemotactic activities of human stromal cell-derived factor 1alpha (SDF- 1alpha) ... factors in the pathogenesis of rheumatoid arthritis? Aleksi Sedo 1 , Jonathan S Duke-Cohan 2 , Eva Balaziova 1 and Liliana R Sedova 3 1 Laboratory of Cancer Cell Biology of the 1 s...

Ngày tải lên: 09/08/2014, 07:20

...

Ngày tải lên: 05/08/2014, 09:46

... numbers of the form 2 a 3 b , where no summand divides another. Partial results are obtained in the problem of determining the maximal and average order of the number of such representations. Results ... Accepted: December 2, 1996 This paper is dedicated to Paul Erd˝os, on the sad occasion of his recent death. Abstract. A primitive 3-smooth partition of n is a representa...

Ngày tải lên: 07/08/2014, 06:20