Báo cáo toán học: " Some Applications of the Proper and Adjacency Polynomials in the Theory of Graph Spectra" docx

Báo cáo toán học: " Some Applications of the Proper and Adjacency Polynomials in the Theory of Graph Spectra" docx

Báo cáo toán học: " Some Applications of the Proper and Adjacency Polynomials in the Theory of Graph Spectra" docx

... trivial.) Then, by the converse of Theorem 2.5 , it must be Q k  u ≥ 1. On the other hand, in the proof of Theorem the electronic journal of combinatorics 4 (1997), #R21 3 In the rest of this introductory ... on the spectrum of the graph [17] . Afterwards, we further investigate some new applications of these polynomials, deriving new bounds for the ra...

Ngày tải lên: 07/08/2014, 06:20

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Báo cáo toán học: "Vertex subsets with minimal width and dual width in Q-polynomial distance-regular graphs" docx

Báo cáo toán học: "Vertex subsets with minimal width and dual width in Q-polynomial distance-regular graphs" docx

... distance-regular graphs. Inci- dentally, descendents have been applied to the Erd˝os–Ko–Rado theorem in extremal set theory [31, Theorem 3], and implicitly to the Assmus–Mattson theorem in coding theory [32, ... hypergeometric orthogonal polynomials 1 by the duality properties of Γ. The starting point of the research presented in this paper is a result of Hosoya...

Ngày tải lên: 08/08/2014, 14:23

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Báo cáo toán học: "On edge colorings with at least q colors in every subset of p vertices" ppsx

Báo cáo toán học: "On edge colorings with at least q colors in every subset of p vertices" ppsx

... to the case when p and q are fixed and n tends to in nity. The study of f(n, p, q) leads to many interesting and difficult problems. For example determining f(n, p, 2) is equivalent to determining ... multicolorings. Among many other interesting results and problems in [3] Erd˝os and Gy´arf´as deter- mined for every p the smallest q (q lin =  p 2  − p + 3) for which f (n,...

Ngày tải lên: 07/08/2014, 07:21

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Báo cáo khoa học: Chick embryo anchored alkaline phosphatase and mineralization process in vitro Influence of Ca 2+ and nature of substrates doc

Báo cáo khoa học: Chick embryo anchored alkaline phosphatase and mineralization process in vitro Influence of Ca 2+ and nature of substrates doc

... suggesting that the rate of hydrolysis is not the limiting factor for mineral formation. There was no formation of any HA after 144 h incubation time in the presence of either ADP or ATP in hydrolysing ... transform infrared spectroscopy study of the environment of phosphate ions in the early deposits of a solid phase of calcium-phosphate in bone and in ena...

Ngày tải lên: 23/03/2014, 17:21

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Báo cáo toán học: " Outage-optimal opportunistic scheduling with analog network coding in multiuser two-way relay networks" docx

Báo cáo toán học: " Outage-optimal opportunistic scheduling with analog network coding in multiuser two-way relay networks" docx

... 12 of 12 Using the definition of best user pair for greedy sche- duling scheme in (10) and applying the theory of order statistics [23] with K i.ni.d. random variables, the outage probability in ... Following the similar steps as above, we obtain P 2,k as presented in ( 15). And the proof of Theorem 1 is completed. Appendix II Proof of Lemma 1 The end-to-end...

Ngày tải lên: 20/06/2014, 21:20

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Báo cáo hóa học: " Research Article Fair Adaptive Bandwidth and Subchannel Allocation in the WiMAX Uplink" pptx

Báo cáo hóa học: " Research Article Fair Adaptive Bandwidth and Subchannel Allocation in the WiMAX Uplink" pptx

... (within each SS) of the coupled-decompositions method in order to obtain new candidates γ i . (5) Finally, the BS updates the value of the dual variable to μ t+1 using the dual projection and the ... be found in [14], where the authors take into account intercell interference to constrain the subchannel transmitting powers. Note that one interesting extension is then...

Ngày tải lên: 21/06/2014, 22:20

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Báo cáo toán học: "HARMONIC FUNCTIONS ON MULTIPLICATIVE GRAPHS AND INTERPOLATION POLYNOMIALS" docx

Báo cáo toán học: "HARMONIC FUNCTIONS ON MULTIPLICATIVE GRAPHS AND INTERPOLATION POLYNOMIALS" docx

... [Ke4]. They lead to certain stochastic processes on the real line, for the Young graph the processes are closely related to those arising in Random Matrix Theory, while for the Kingman graph the theory ... that the Kingman graph may be viewed as the degeneration of the Jack graph J(θ)asθ → 0. Indeed, according to the definition of the Jack functions, their...

Ngày tải lên: 07/08/2014, 06:20

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Báo cáo toán học: "A note on major sequences and external activity in trees" pdf

Báo cáo toán học: "A note on major sequences and external activity in trees" pdf

... T 1 and T 2 obtained in Step 2 of the bijection. The relabelings T  1 and T  2 obtained in Step 3 are shown in Figure 5. The vertex r in 7 0 4 5 1 2 8 3 6 T  2 T  1 Figure 5: Trees T  1 and ... subsequence of the sequence S that we are constructing. Specifically, put the elements of S 1 in order into the positions of S indexed by the vertices of T ...

Ngày tải lên: 07/08/2014, 06:22

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Báo cáo toán học: " Some certain properties of the generalized hypercubical functions" ppt

Báo cáo toán học: " Some certain properties of the generalized hypercubical functions" ppt

... graphics and visualization functions and their zeros and examining many singularities. All of the previous team of mathematicians and computer specialists who are now in the stage of the global ... fixing the extreme of the contour HC functions. 2.5. Contour graphics of HCs The graphics of the function and their derivatives may be simply obtained by compu...

Ngày tải lên: 20/06/2014, 21:20

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