Báo cáo toán học: "An Extremal Characterization of Projective Planes" pps

Báo cáo toán học: " An efficient implementation of iterative adaptive approach for source localization" pptx

Báo cáo toán học: " An efficient implementation of iterative adaptive approach for source localization" pptx

... Open Access An efficient implementation of iterative adaptive approach for source localization Gang Li 1* , Hao Zhang 1 , Xiqin Wang 1 and Xiang-Gen Xia 2 Abstract The iterative adaptive approach ... and its performance analysis. IEEE Trans Signal Process. 58(11), 5655–5666 (2010) doi:10.1186/1687-6180-2012-7 Cite this article as: Li et al.: An efficient implement...
Ngày tải lên : 20/06/2014, 20:20
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Báo cáo toán học: " Synthesis and characterization of CuO nanowires by a simple wet chemical method" pdf

Báo cáo toán học: " Synthesis and characterization of CuO nanowires by a simple wet chemical method" pdf

... Synthesis and characterization of CuO nanowires by a simple wet chemical method Anita Sagadevan Ethiraj 1 and Dae Joon Kang* 1 1 BK21 Physics Research Division, Department of Energy ... Fully formatted PDF and full text (HTML) versions will be made available soon. Synthesis and characterization of CuO nanowires by a simple wet chemica...
Ngày tải lên : 20/06/2014, 21:20
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Báo cáo toán học: "On the smoothness of sphere extensions " ppsx

Báo cáo toán học: "On the smoothness of sphere extensions " ppsx

... class="bi x0 y0 w1 h 1" alt =""
Ngày tải lên : 05/08/2014, 10:20
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Báo cáo toán học: " An Eigenvalue Characterization of Antipodal Distance-Regular Graph" ppt

Báo cáo toán học: " An Eigenvalue Characterization of Antipodal Distance-Regular Graph" ppt

... E. R. van Dam and W. H. Haemers, Eigenvalues and the diameter of graphs, Linear and Multilinear Algebra 39 (1995), 33–44. [8] E. R. van Dam and W. H. Haemers, A characterization of distance-regular ... study two spectral characterizations of antipodal distance-regular graphs. The fist one establishes that the distance-regular graphs which are antipodal the electronic journal...
Ngày tải lên : 07/08/2014, 06:22
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Báo cáo toán học: "An Extremal Doubly Even Self-Dual Code of Length 112" pdf

Báo cáo toán học: "An Extremal Doubly Even Self-Dual Code of Length 112" pdf

... d of a doubly even self-dual code of length n is bounded by d ≤ 4[n/24] + 4. A doubly even self-dual code meeting this upper bound is called extremal. The existence of extremal doubly even self-dual ... extremal doubly even self-dual code of length 72 is a long-standing open question [11] (see [10, Section 12]). 112 is the smallest length for...
Ngày tải lên : 07/08/2014, 15:22
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Báo cáo toán học: "An elementary proof of the hook formula" ppt

Báo cáo toán học: "An elementary proof of the hook formula" ppt

... (5) The proof of (3) is completely combinatorial, the proof of (4) uses nothing more than the fundamental theorem of algebra, and the proof of (5) is a simple geometric argument. Proof of (3). The ... hooks in the diagram of λ. Many proofs of this fact have been given, of varying complexity. We present here an elementary new proof which uses nothing mor...
Ngày tải lên : 07/08/2014, 15:23
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Báo cáo toán học: "An Extremal Characterization of Projective Planes" pps

Báo cáo toán học: "An Extremal Characterization of Projective Planes" pps

... bound on the number of 2k-cycles which is monotone increasing in the size of the graph, and the electronic journal of combinatorics 15 (2008), #R143 2 An Extremal Characterization of Projective Planes Stefaan ... of Mathematical Sciences of the University of Delaware, and when the second author was visiting the Department of Mathematics of the University of Californ...
Ngày tải lên : 07/08/2014, 21:21
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Báo cáo toán học: "An extremal theorem in the hypercube" pps

Báo cáo toán học: "An extremal theorem in the hypercube" pps

... have an embedding of H in G, completing the proof. ✷ To complete the proof o f Theorem 1.1, we only need to apply the f ollowing classi- cal result of Erd˝os [10] regarding the extremal number ... v t v 1 v 2 }. On the other hand, C 4 , C 6 and C 10 do not admit k-partite representations for any k. The importance of these considerations lies in the following theorem. T...
Ngày tải lên : 08/08/2014, 12:22
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Báo cáo toán học: "An Extremal Property of Tur´n Graphs a" potx

Báo cáo toán học: "An Extremal Property of Tur´n Graphs a" potx

... electronic journal of combinatorics 17 (2010), #R170 5 An Extremal Property of Tur´an Graphs Felix Lazebnik ∗ Spencer Tofts Department of Mathematical Sciences University of Delaware, Newark, ... set of G and the edge set of G, respectively. Let |A| denote the cardinality of a set A. Let n = v(G) = |V (G)| and m = e(G) = |E(G)| denote the number of vertices the (order)...
Ngày tải lên : 08/08/2014, 12:23
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Báo cáo toán học: "An entropy proof of the Kahn-Lov´sz theorem a" ppsx

Báo cáo toán học: "An entropy proof of the Kahn-Lov´sz theorem a" ppsx

... 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
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