Báo cáo toán học: "A short proof of a theorem of Kano and Yu on factors in regular graphs" pot

... text (HTML) versions will be made available soon. Spin-related tunneling through a nanostructured electric-magnetic barrier on the surface of a topological insulator Nanoscale Research Letters 2012, ... and the barrier width. In addition, changing the length of the barrier and/or the magnetic field can tune the total reflection and the perfect transmi...

Ngày tải lên: 20/06/2014, 20:20

... the article as it appeared upon acceptance. Fully formatted PDF and full text (HTML) versions will be made available soon. Lyapunov-type inequalities for a class of even-order differential equations Journal ... Yang, X, Kim, Y, Lo, K: Lyapunov-type inequalities for a class of quasilinear systems. Math. Comput. Model. 53, 1162–1166 (2011) [13] Zhang, Q, Tang, XH: Ly...

Ngày tải lên: 20/06/2014, 21:20

... tracking performance analysis of the family of SPU -NLMS and SPU affine projection algorithms. Based on this, the performance of Max -NLMS [22], N -Max NLMS [16, 23], the variants of the selective partial update normalized ... square convergence analysis of the SPU -NLMS for the case of white input signals. The more general performance anal...

Ngày tải lên: 21/06/2014, 08:20

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Ngày tải lên: 05/08/2014, 15:20

... journal of combinatorics 10 (2003), #R39 6 2.1 An Invariant of Szemer´edi’s Regularity Lemma Let G =(U ∪ V, E) be a bipartite graph. For an integer t, we define a t-equitable partition V (G) as a ... state, up front, that we always assume m is a sufficiently large integer. Our proof of Theorem 1.5 uses a well-known invariant formulation of Szemer´edi’s Regularity Lemma....

Ngày tải lên: 07/08/2014, 08:20

... and y. Then G is a 4 -regular graph, and G has a 1-factor con- taining e and a 1-factor avoiding e. According to Theorem 3, G has a k-factor containing e and a k-factor avoiding e for every k ... containing e and a 1-factor avoiding e, then G has a k-factor containing e and a k-factor avoiding e for every k ∈ {1, 2, . . . , r − 1}. Proof. Let F and F e be two...

Ngày tải lên: 07/08/2014, 13:21

... 1 A k R k,k+1  1 k  A k , the electronic journal of combinatorics 16 (2009), #R128 3 Symmetric functions for the generating matrix of the Yangian of gl n (C) Natasha Rozhkovskaya Department of Mathematics Kansas ... to the terms of the sum, we conclude that each of them has the form (−1) m−k− 1 e k (u)p − m−k (u − k), and the Newton’s formula for eleme...

Ngày tải lên: 08/08/2014, 01:20

... adjacency matrix o f G. Then the eigenvalues of G are defined as the eigenvalues of A. As all eigenvalues of A are real, we can rearra nge them as λ 1  ···  λ n . I. Gutman (see [9]) defined the energy ... eigenvalue. Then by [5, Theorem 6.7], G is a complete multipartite graph. As the r ank of a complete multipartite graph equals t he number of its parts, G must...

Ngày tải lên: 08/08/2014, 01:20

... such a polygon do not change genus of such a surface. Operation 1: Aaa − ∼ A, Operation 2: AabBab ∼ AcBc, Operation 3: AB ∼ {(Aa), (a − B)}, A A a a A B a b b a A B c c A B A Bc c Figure 4: Operation ... attaching ears serially or by bar -amalgamation of a cactus to G N The authors of [5] discussed a Kuratowski type theorem for average genus of graph...

Ngày tải lên: 08/08/2014, 12:23

... A proof of the Kahn-Lov´asz theorem The entropy proof of the Kahn-Lov´asz theorem is complicated by the fact that there can be edges of the graph (and a fixed matching) amongst the neighbors of ...  E is independent of the event {x  V y}. Proof. For any permutation of the edges of m, there is a permutation of V (G) inducing it. Therefore, the unif...

Ngày tải lên: 08/08/2014, 12:23

... protocol The BLISS cluster randomised controlled trial of the effect of 'active dissemination of information' on standards of care for premature babies in England (BEADI) study protocol ... Association of Perinatal Medicine (BAPM) position statement will be used as the case study. Participants The main participants in th...

Ngày tải lên: 11/08/2014, 05:22

... efficacious therapy was surgical resection of the tumour mass. We report here a case of a late relapse of a germ cell tumour, which occurred 23 years after orchiectomy and following four cycles of ... [4]. Late relapse is defined as a germ cell tumour that appears more than two years after therapy and complete remission [3]. Of the 81 patients trea...

Ngày tải lên: 11/08/2014, 14:20

... 1 of 8 (page number not for citation purposes) Implementation Science Open Access Study protocol The BLISS cluster randomised controlled trial of the effect of 'active dissemination of information' ... Association of Perinatal Medicine (BAPM) position statement will be used as the case study. Participants The main participants in the BLIS...

Ngày tải lên: 11/08/2014, 16:20

... weaning, low weaning success rates and prolonged ICU stay. In the third study, Blot and Melot [4] performed a retrospective analysis of the indications, timing and techniques of tracheostomy in ... monitors and post ICU outcome in the elderly James Sadler 1 and Gareth Williams 2 1 Specialist Registrar in Anaesthesia, University Hospitals of Leicester, Leicest...

Ngày tải lên: 12/08/2014, 22:22

... improves hepatic micro- vascular perfusion and attenuates leukocyte activation in sep- sis; and influences systemic inflammatory response and liver tissue injury induced by cecal ligation and puncture ... abdominal sympathetic block associated with TEA also might have reduced the venolar temporary leu- kocyte adhesion in sepsis. Finally, intestinal injury and portal inflow...

Ngày tải lên: 13/08/2014, 18:22