Báo cáo toán học: "On STD6[18, 3]’s and STD7[21, 3]’s admitting a semiregular automorphism group of order 9" doc

... admitting a semiregular automorphism group of order 9Kenzi AkiyamaDepartment of Applied MathematicsFukuoka University, Fukuoka 814-0180, Japanakiyama@sm.fukuoka-u.ac.jpMasayuki OgawaComputer Engineering ... generalizedHadamard matrices of order 3 and 6 over a group of order 3.The existence of STD2[2λ, 2]’s is equivalent to the existence of Hadamard matrices of order 2λ. The study of Ha damard matrices is one of ... diﬀerence matrices, resolvable transversal designs and generalizedHadamard matrices, Math. Z. 167(1979), 49–60.[12] V. C. Mavron and V. D. Tonchev, On symmetric nets and generalized Hadamardmatrices...

Báo cáo toán học: "On the Dimer Problem and the Ising Problem in Finite 3-dimensional Lattices" pps

... #R306G is an arbitrary graph, as a linear combination of Pfaﬃans of matrices associated withrelevant orientations of G. When G is a bipartite graph like the cubic lattice, the Pfaﬃansmay be turned ... by a path. Call each edge of this path auxiliary.3. We again associate variable a with each auxiliary edge e and we let w(e)=1.4. The edges hxyz, x even and z even will be called relevant ... 2. A simple calculation reveals that there are 10 such stable orientations and 6 stableorientations that are irrelevant. Hence α equals average of 10 determinants of signings of (3 × 3) matrix...

Báo cáo toán học: " On externally complete subsets and common fixed points in partially ordered sets" potx

... & Statistics, King Fahd University of Petroleum and Minerals, Dhahran 31261, SaudiArabia2Department of Mathematical Sciences, The University of Texas at El Paso, El Paso, TX 79968, USAAuthors’ ... and S be two self-maps of a partially ordered set X. The pair(S, T) is called symmetric Banach operat or pair if both (S, T) and (T, S) are Ba nachoperator pairs, i.e., T(Fix(S)) ⊆ Fix(S) and ... A Khamsi1,2* Correspondence:abusbeih@kfupm.edu.sa1Department of Mathematics &Statistics, King Fahd University of Petroleum and Minerals, Dhahran31261, Saudi ArabiaFull list of author...

Báo cáo toán học: "On the form sum and the Friedrichs extention of Schroedinger operators with singular potentials " docx

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Báo cáo toán học: "On M-spectral sets and rationally invariant subspaces " pptx

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Báo cáo toán học: "On the determining number and the metric dimension of graphs" pot

... dimension of graphsJos´e C´aceres∗Department of Statistics and Applied MathematicsUniversity of Almer´ a, Almer´ a, Spainjcaceres@ual.esDelia Gar ijo∗Department of Applied Mathematics IUniversity ... IUniversity of Seville, Seville, Spaindgarijo@us.esMar´ a Luz P uertas∗Department of Statistics and Applied MathematicsUniversity of Almer´ a, Almer´ a, Spainmpuertas@ual.esCarlos Seara†Department ... dimension have to do with wheels and Cartesian products. Shanmukha and Sooryanarayana [24] compute this parameterfor wheels, a nd for graphs constructed by joining, in a certain way, wheels with paths,complete...

Báo cáo toán học: " On cubic planar hypohamiltonian and hypotraceable graph" pptx

... Planar and inﬁnite hypohamiltonian and hypotraceable graphs. Dis-crete Mathematics 14, 377–389. (1976)[15] Thomassen, C.: Hypohamiltonian graphs and digraphs. in: Theory and Applications of ... hypohamiltonia n graphs G and Hthat can be seen in Figure 1 and Figure 2, respectively.Theorem 2.3. G and H are cubic planar hypohamiltonian graphs.Proof. Both G and H are obviously cubic and planar. ... (using a computer) that for any pair of edges e, fthe electronic journal of combinatorics 18 (2011), #P85 5On cubic planar hypohamiltonian and hypotraceable graphsMakoto ArayaDepartment of Computer...

Báo cáo y học: "Dipeptidyl peptidase IV activity and/or structure homologs: Contributing factors in the pathogenesis of rheumatoid arthritis" doc

... Shioda T, Kato H, Ohnishi Y, Tashiro K, Ikegawa M, Nakayama EE,Hu H, Kato A, Sakai Y, Liu H, et al.: Anti-HIV-1 and chemotacticactivities of human stromal cell-derived factor 1alpha (SDF-1alpha) ... factors in the pathogenesis of rheumatoid arthritis?Aleksi Sedo1, Jonathan S Duke-Cohan2, Eva Balaziova1 and Liliana R Sedova31Laboratory of Cancer Cell Biology of the 1stFaculty of ... Grant Agency of the Min-istry of Health of the Czech Republic (AS, EB) and by a Barr Award inBasic and Innovative Cancer Research (JSD-C). We thank Dr B Guild(Millennium Pharmaceuticals, Cambridge...

Báo cáo toán học: "On S-decomposable operators " docx

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Báo cáo toán học: "ON PRIMITIVE 3-SMOOTH PARTITIONS O" pdf

... numbers of the form 2 a 3b, where no summand divides another. Partial results are obtained in theproblem of determining the maximal and average order of the number of such representations.Results ... Accepted: December 2, 1996This paper is dedicated to Paul Erd˝os, on the sad occasion of his recent death.Abstract. A primitive 3-smooth partition of n is a representation of n as the sum of ... representation of n would contradict our assumption that all the terms in thatrepresentation are greater than 3b. Following this same line of reasoning, the allegedrepresentation unfolds as follows:n...

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