Báo cáo toán học: "Hook Length Formulas for Trees by Han’s Expansion" doc

... it appeared upon acceptance. Fully formatted PDF and full text (HTML) versions will be made available soon. Optical sensing nanostructures for porous silicon rugate filters Nanoscale Research ... interferometers: reflective interferometric Fourier transform spectroscopy. J Am Chem Soc 2005, 127:11636-11645. Optical sensing nanostructures for porous silicon rugate...

Ngày tải lên: 20/06/2014, 20:20

... ESPAR antennas on mobile terminals in multiuser Rician channels we consider that both the BS and the mobile terminals perform opportunistic beamforming. This is performed by randomly selecting ... channel increases, the effect of the increased training overhead is evident in the system performance. 3.3 Receiver beamforming in Rician channels In order to evaluate the potenti...

Ngày tải lên: 20/06/2014, 20:20

... article as it appeared upon acceptance. Fully formatted PDF and full text (HTML) versions will be made available soon. Global Bifurcation Results for General Laplacian Problems Fixed Point Theory and ... relatively compact sets of C 1 0 [0, 1]. One may refer Man´asevich-Mawhin [4, 3] 5 Global bifurcation results for general Laplacian problems Eun Kyoung Lee 1 , Yong-H...

Ngày tải lên: 20/06/2014, 20:20

... 1 Solid-phase microextraction for bioconcentration studies referred to OECD TG 305 Running head: SPME for fish bioconcentration studies Rolf-Alexander Düring* 1 , ... due to sorption to natural OM - already beneath the permitted concentration of 2 mg L −1 TOC in the dilution water according to OECD TG 305. It is to be expected that resulting BCF...

Ngày tải lên: 20/06/2014, 20:20

... process in a lifecycle flow model Figure 11. Design rationale network for Scenario A Figure 12. Design rationale network for Scenario B Figure 13. Lifecycle flow for Scenario B Table 1. Scenario ... describing the lifecycle scenario, designers can easily identify appropriate lifecycle options and requirements for product and process design in the later st...

Ngày tải lên: 20/06/2014, 21:20

... 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

... common fixed points of nonexpansive semigroups in Banach space. Appl. Math. Lett. 20, 751–757 (2007) [11] Chen, RD, He, HM, Noor, MA: Modified Mann iterations for nonexpansive semigroups in Banach space. ... type mapping or (ψ, L)- contraction. In the rest of the article we suppose that the ψ from the definition of the (ψ, L) -contraction Modified noor iterations for...

Ngày tải lên: 20/06/2014, 21:20

... obtained for the existence of positive periodic solutions to a neutral multi- delay logarithmic population model. Some sufficient conditions obtained in this article for the existence of positive periodic ... appeared upon acceptance. Fully formatted PDF and full text (HTML) versions will be made available soon. Positive periodic solutions for neutral multi-delay...

Ngày tải lên: 20/06/2014, 21:20

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Ngày tải lên: 05/08/2014, 15:20

... A simple algorithm for constructing Szemer´edi’s Regularity Partition Alan Frieze Department of Mathematical Sciences, Carnegie ... combinatorics 6 (1999), #R17 3 A partition satisfying the second criterion is called equitable. V 0 is called the exceptional class. Following [9], for every equitable partition P into k +1classes ... (ˆx + ) T Wˆy − ≥ ˆγ √ pq/4. (The proof for...

Ngày tải lên: 07/08/2014, 06:20

... v(G) denote the number of vertices, and (G) denote the number of edges. In this paper, we construct a graph G having no two cycles with the same length which leads to the following result. Theorem. ... Chunhui Lai, On the size of graphs with all cycle having distinct length, Discrete Math. 122(1993) 363-364. [6] Chunhui Lai, The edges in a graph...

Ngày tải lên: 07/08/2014, 06:22

... Postnikov. Keywords: hook length formulas for trees, k-ary trees, plane trees, labeled trees. 1 Introduction Recently, Han developed an expansion t echnique for deriving hook length formulas for binary trees. He ... 11 we consider the expansion formulas for plane trees and plane forests. In Section 4, we present expansion formulas and hook length formulas for...

Ngày tải lên: 07/08/2014, 21:21

... edge-colouring of G. The orbit of C under Aut(G) ìS n corresponds to the type of L(C). Therefore the number of non-isomorphic edge-colourings of G is the number of types of Latin squares of order n. A ... J. ă Osterg ard, The number of Latin squares of order 11, Math. Comp. To appear. [70] S. M. Jacob, The enumeration of the Latin rectangle of...

Ngày tải lên: 08/08/2014, 01:20

... 4.1 Each of the constructions in Definitions 4.1 and 4.2 has the property that if the graph G satisfies the Laman conditions, then so does  G. This follows from Theorems 2.2 and 2.3 and the fact ... − 4. the electronic journal of combinatorics 17 (2010), #R154 39 proofs of the corresponding Laman- type t heorems for the groups C 2 and C s . The Laman- type...

Ngày tải lên: 08/08/2014, 12:23

... Classifications: 05A15, 05A19 Abstract Recently, Han obtained two hook length formulas for binary trees and asked for combinatorial proofs. One of Han’s formulas has been generalized to k-ary trees by Yang. ... staircase labeling. 1 Introduction Motivated by the hook length formula of Postnikov [6], Han [4] discovered two hook length formulas for binary trees. Han’s...

Ngày tải lên: 08/08/2014, 14:23