Báo cáo toán học: "Ascent sequences and upper triangular matrices containing non-negative integers" pot

... feature of the type-I band transition. Therefore, the interband transition of the GaSb QD would be the only proper origin of the high-energy peak. In the growth process of the sample, the InGaAs ... light emission intensity of the GaSb QD could be stronger than the type II transition due to the stronger spatial confinement of carriers in the QD and the...

Ngày tải lên: 20/06/2014, 20:20

... formatted PDF and full text (HTML) versions will be made available soon. Structural, optical and magnetic studies of manganese-doped zinc oxide hierarchical microspheres by self-assembly of nanoparticles Nanoscale ... original work is properly cited. 1 Structural, optical, and magnetic studies of manganese-doped zinc oxide hierarchical micros...

Ngày tải lên: 20/06/2014, 20:20

... nonempty and closed sub- sets of B X such that lim n à(A n ) = 0, the set A = n=1 A n is nonempty and convex. (iv) The measure à satises the Cantor property in X. Proof. The equivalence of (i) and ... subsets of the bounded and convex set coC, then à(C n ) = 0 (n ∈ N), and therefore C ∞ = ∅. Appealing again to the ˇ Smulian theorem [6, Theorem V.6.2] we find t...

Ngày tải lên: 20/06/2014, 20:20

... engage in music performance via real-time interaction remained as one of the challenging problems in the field. Yet, robotic performance is criticized for being to mechanical and robotic [1]. In this ... methods for tempo tracking and rhythm quantization. J Artif Intell Res 2003, 18:45–81 [14] Raphael C: Music plus one and machine learning. In International Conference...

Ngày tải lên: 20/06/2014, 20:20

... (2008) to determine the first amino acid of the mature rPHY US417. The temperature profile of rPHY US417 was obtained by determining its activity between 37 and 80 °C at pH 7.5. Thermostability ... for overproduction of recombinant proteins in Bacillus is highly promising. 2 Abstract To attempt cost-effective production of US417 phytase in Bacillus...

Ngày tải lên: 20/06/2014, 20:20

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Ngày tải lên: 05/08/2014, 09:46

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Ngày tải lên: 05/08/2014, 10:20

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Ngày tải lên: 05/08/2014, 15:21

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Ngày tải lên: 05/08/2014, 15:21

... [8]. 5OpenProblems The concepts of stapled sequences and stapling coverings introduced and discussed above lead to some unsolved problems, as follows. 1. What is the exact relationship of cutoff and expense? Can ... fact, as shown below, stapling coverings exist for all N ≥ 17. 4 Efficient Stapling Coverings An interesting characteristic of stapling covering is the ra...

Ngày tải lên: 07/08/2014, 06:20

... trees, and therefore a unique bijection between tournament sequences and Meeussen sequences which respects the ideas of extending or truncating a sequence. To better understand Meeussen sequences, ... Wouter Meeussen [private communication, 1999], and we here name sequences with this property Meeussen sequences in his honor. Part of their definition is similar to that of...

Ngày tải lên: 07/08/2014, 06:20

... contains some concluding remarks and related questions. 2. Background and results Noncrossing partitions. We first recall the definition of noncrossing partitions for the classical reflection groups ... address: athana@math.upenn.edu ON NONCROSSING AND NONNESTING PARTITIONS FOR CLASSICAL REFLECTION GROUPS CHRISTOS A. ATHANASIADIS Abstract. The number of noncrossi...

Ngày tải lên: 07/08/2014, 06:22

... where p and q are coprime and resolves the BAC Conjecture when p and q are coprime and either p or q is even. For the special case of factorisations of balanced complete bipartite graphs K n,n and ... Permutation Separations and Complete Bipartite Factorisations of K n,n Nigel Martin Department of Mathematics University of Durham, Durham, U.K. nigel.martin@...

Ngày tải lên: 07/08/2014, 08:20

... diophantienne lin´eaire. I,II,J.Reine Angew. Math. 226 (1967), 1–29, and 227 (1967), 25–49. [5] I.M. Gelfand, M.M. Kapranov, and A.V. Zelevinsky, Discriminants, resultants, and multidimensional determinants. ... by the facets in G and F G, respectively. Ehrhart called the sets C ∆andC ∆  reciprocal domains within the boundary complex of C. Examples of reciprocal domains aris...

Ngày tải lên: 07/08/2014, 08:22

... Ascent sequences and upper triangular matrices containing non-negative integers Mark Dukes ∗ Mathematics Division Science Institute, University of Iceland, 107 Reykjav´ık, Iceland dukes@hi.is Robert ... positive diagonal, and bidiagonal matrices We now turn to some natural subclasses of matrices. These are binary matrices, matrices that have no zer os on their diag onal,...

Ngày tải lên: 08/08/2014, 12:22