Báo cáo toán học: "The Directed Anti-Oberwolfach Solution: Pancyclic 2-factorizations of complete directed graphs of odd order" doc

... ordering of the hyperplanes of B n induces corresponding orderings of the edges of K n , of the transpositions of S n and of the reflections of A n−1 . The fiber of a permutation p of 12 n is the set of ... consists of all transpositions of S n not in these two subgroups: we recover in the language of groups the characterization of Lemma 5.2.1 stated in terms of...

Ngày tải lên: 07/08/2014, 08:22

... contribute to a broader class of 2-factorizations. The undirected anti-Oberwolfach question has been solved affirmatively for all com- plete graphs of odd order, complete graphs of even order with a 1-factor ... and all complete bipartite graphs [7]. We show here that all directed complete graphs of odd order have a directed anti-Oberwolfach decomposition. Th...

Ngày tải lên: 07/08/2014, 06:23

... and size of the areas, the configuration of the RSUs and ARs, etc. 9 coverage of the RSUs deployed on the roadside. One of the main challenges that VANETs pose is the minimum degree of technology ... length of a multi-hop connected chain of n + 1 vehicles (Y ) can be represented as the sum of n inde- pendent exponential truncated variables. The PDF of Y can be obtained by the...

Ngày tải lên: 20/06/2014, 20:20

... immediately from Theorem 3.1 of [3]. Vietnam Journal of Mathematics 33:1 (2005) 91–95 The Bounds on Components of the Solution for Consistent Linear Systems * Wen Li Department of Mathematics, South ... vertices of G and yields a partition V 1 ∪ ∪ V k ∗ This work was supported by the Natural Science Foundation of Guangdong Province (31496), Natural Science Foundation of Universi...

Ngày tải lên: 06/08/2014, 05:20

... the proof. 4 Concluding remarks Of special interest is the case for directed Cayley graphs whose vertex set is a group Γ and the directed edges are generated by a subset B of elements of Γ as ... for the rate of convergence in terms of λ? Another important consequence of the Laplacian eigenvalues is its relationship with the Cheeger constant of a directed graph [4]. It i...

Ngày tải lên: 07/08/2014, 13:21

... the two types of forward mutations of the A 2 T-system cluster algebra, obtained by applying the first (resp. second) line of (3.1). We may now turn to the proof of Theorem 3.4. Proof. The formula ... as in (4.1), each made of a succession of r−1 edges of type e or f . As discovered in the case of A 2 , there are 6 possible transitions between an edge of type e or f of the...

Ngày tải lên: 08/08/2014, 12:22

... the height of GaSb/In 0.53 Ga 0.47 As QDs. (a) The AFM image of GaSb/In 0.53 Ga 0.47 As QDs, (b) histogram of the height of GaSb/In 0.53 Ga 0.47 As QDs, and (c) the STEM image of GaSb/In 0.53 Ga 0.47 As ... dependence of the PL peak energies over the third root of the excitation density [20]. The inset of Figure 3b shows the linear dependence of the PL peak energies and...

Ngày tải lên: 20/06/2014, 20:20

... age of 74 years (SD = 15.0). A study of the TOAST classification of the type of strokes revealed an unusually high number of cardio-embolic strokes in our cohort (50.3%). The median number of ... dBP cutoff of 70 mmHg. Sixty-five percent of the cohort had dBP<70 mmHg sometime during the stay in ED. When this group was compared to those with dBP>70 mmHg, there The i...

Ngày tải lên: 20/06/2014, 20:20

Ngày tải lên: 20/06/2014, 21:20

... Institute of Education. She completed her doctoral studies at the Department of Linguistics, The University of Hong Kong in 2006. Her chief areas of research interests are related to the study of syntax, ... use of those common types of occupation should also be included in the cur- riculum design. The following section is a brief review of the status of Cantonese in Hong Ko...

Ngày tải lên: 20/06/2014, 21:20