Báo cáo toán học: "GBRDs with block size three over 2-groups, semi-dihedral groups and nilpotent groups" docx

... combinatorics 18 (2011), #P32 7 GBRDs with block size three over 2 -groups, semi-dihedral groups and nilpotent groups R. Julian R. Ab el Diana Combe School of Mathematics and Statistics The University ... designs and Bhaskar Rao designs with block size three, J. Statist. Plann. Inference 10 (1984), 69–82. [22] J. Seberry, Bhaskar Rao designs of block size...

Ngày tải lên: 08/08/2014, 12:23

Ngày tải lên: 05/08/2014, 10:20

... extension of L-systems incorporating local variables and sensitivity, Silva Fenn. 31 (1997) 285-295. [27] Kurth W., Sloboda B., Tree and stand architecture and growth described by formal grammars. I. ... Sci. 45 (1999) 16-30. [28] Kurth W., Sloboda B., Tree and stand architecture and growth described by formal grammars. II. Sensitive trees and competition, J. For. Sci. 45 (1999) 5...

Ngày tải lên: 08/08/2014, 14:22

... coatings with high demands on hardness and adhesion as well as high thermal stability and good conductivity [10]. Due to this important feature, TiN has been widely used as a hard and protective ... corresponding size distributions (Figures 7b and 8b) and the nearest neighbor distances (Figures 7c and 8c). In Figure 7a,b, it can be seen that the nanoparticles have an avera...

Ngày tải lên: 20/06/2014, 20:20

Ngày tải lên: 05/08/2014, 15:20

Ngày tải lên: 05/08/2014, 15:21

... Cabrerizo, A. Carriazo, L. M. Fern´andez and M. Fern´andez studied slant and semi-slant submanifolds of a contact manifold [3, 4], and presented existence and uniqueness theorems for slant submanifolds ... L. M. Fern´andez and M. Fern´andez, Semi-slant sub- manifolds of a Sasakian manifold, Geom. Dedicata 78 (1999) 183–199. 4. J. L. Cabrerizo, A. Carriazo, L. M. Fern´andez and M....

Ngày tải lên: 06/08/2014, 05:20

... σ[a ]and [b]witha and b running over the positive integers, which has the property that for any initial segment, the sum of the push sizes is at least as great as the sum of the pop sizes, and over the ... each of the pops could have been handled as a push and the whole sequence of elements could have been handled with a single pop. Otherwise, we discard notes and continue fresh...

Ngày tải lên: 07/08/2014, 07:21

... such ranges (and in particular no infinite string works for all n).  4 Comparison with random strings In extremal problems of any sort, an appropriate random structure is always a good candidate ... distributed in [d] and have mean (d + 1)/2, the waiting times in a random string A have geometric distribution with parameter d and thus mean d. Perhaps surprisingly, this does not mean...

Ngày tải lên: 07/08/2014, 08:20

... that ω(G t )=t and χ s (G t )=  t+1 2  . Moreover, G 3 is outerplanar and G 4 is planar. Proof. We give a recursive construction with base cases G 1 = K 1 and G 2 = P 4 .Lett ≥ 3 and G t−1 be ... degree less than three and inductively color the smaller graph. Since x has at most six vertices in its first and second neighborhoods, we may color it with a different color and...

Ngày tải lên: 07/08/2014, 08:20