Báo cáo toán học: "Upper and lower bounds for Fv (4, 4; 5)" pps
... F v (4, 4; 5; 23) too, but the graphs obtained by deleting one vertex are not in F v (4, 4; 5; 23) . the electronic journal of combinatorics 17 (2010), #N34 6 Upper and lower bounds for F v (4, 4; ... the upper and lower bounds for F v (4, 4; 5). With the help of computer, we obtain that there is exactly one graph in the set of (2, 2, 4; 5; 13) v grap...
Ngày tải lên: 08/08/2014, 11:20
... bounds and the best upper bounds known. For example the lower bound for M(15, 10) in [1] is 958, the lower bound using Lorentzen and Nilsen’s formulation is 962 and the lower bound in this paper is ... prove lower bounds on M(I,J). This was a generalization and improvement of earlier lower bounds. Here we show how to improve the LP bound (for I>1) by adding in...
Ngày tải lên: 07/08/2014, 06:20
... possibl e to perform all relevant control and configuration com- mands for every station. The baseband board was used for the real-time tests of the MIMAX baseband processor in several setups. First, ... perform the combining and processing of the complex antenna signal in the digital baseband. Since complete transmitter and receiver are required for each path, the resulting power...
Ngày tải lên: 20/06/2014, 21:20
Báo cáo toán học: "Continuous and analytic invariants for deformations of Fredholm complexes " pptx
Ngày tải lên: 05/08/2014, 15:20
Báo cáo toán học: "Superization and (q, t)-specialization in combinatorial Hopf algebras" pps
... k or µ −1 (k + τ i−k ) otherwise, and where x i and y i are defined, for i k, as the x i and y i associated to σ as in Lemma 4.7, and, for i > k, as x i−k and y i−k associated to τ, except ... a standard binary search tree and the first (q, t)-hook-content formula on trees (right diagram). Let us now illustrate the second and third (q, t)-hook-content formulas for binary...
Ngày tải lên: 08/08/2014, 01:20
Báo cáo toán học: "A tight lower bound for convexly independent subsets of the Minkowski sums of planar point sets" potx
... “Computationism as a Foundation for the Sciences” and Grant-in-Aid for Scientific Research from Ministry of Education, Science and Culture, Japan, and Japan Society for the Promotion of Science. ∗∗ Kyoto ... example. O(m 2/3 n 2/3 + m + n), and asked whether a superlinear lower bound exists for M(n, n). The quantity M(n, n) gives an upper bound for the largest convexly inde...
Ngày tải lên: 08/08/2014, 11:20
Báo cáo toán học: "Invariant and coinvariant spaces for the algebra of symmetric polynomials in non-commuting variables" pps
... w 1 = 1 and w i ≤ 1 + max{w 1 , w 2 , . . . , w i−1 } for all 2 ≤ i ≤ d. We call them restricted growth words here. See [16, 17 , 19] and [6, 8] for some of their combinatorial properties and applications. ... structural features of S and T . Section 4 describes the place-action structure of T and the original motivation for our work. Our main results are proven in Sections 5...
Ngày tải lên: 08/08/2014, 12:23
Báo cáo toán học: "Product and puzzle formulae for GLn Belkale-Kumar coefficients" potx
... are n i +1 2 right-side-up i -triangles and n i 2 upside-down i-triangles, and n i n j (i, j)-rhombi, for all i and j. More specifically, the number of (i, j)-rhombi (for i > j) with a corner pointing ... into triangles and rhombi. Then as before, shrink the 1-edges. Given a pair (G, P) ∈ ∆ A 1] σ A 1] π,A 1] ρ ×∆ D 1 c σ D 1 c π,D 1 c ρ , we know D 1 c G and P are the...
Ngày tải lên: 08/08/2014, 14:23
Báo cáo toán học: "The Tur´n problem for hypergraphs of fixed size " ppsx
... automorphisms of F and sub(F, H)isthenumberofF-subgraphs of H. Also, Erd˝os-Simonovits supersaturation [6] implies that for any δ>0thereis>0 and an integer n 0 so that for any r-uniform hypergraph ... a forest of given size. Lemma 2 (i) An r-uniform hypergraph with at least r!(t − 1) r edges contains a forest with t edges. (ii) Let F be a 3-uniform hypergraph. Then either (a) F...
Ngày tải lên: 07/08/2014, 08:22
Báo cáo toán học: " Existence and uniqueness of nonlinear deflections of an infinite beam resting on a non-uniform nonlinear elastic foundation" pptx
... right-continuous, and thus, is continuous. By (11) and (14), we have ηk ≤ f u (0, x) ≤ k, and so −(1 −η) k ≤ f u (0, x) −k ≤ 0 for every 10 Figure 1: Infinite beam on nonlinear and non-uniform elastic ... C q (R) if u ∈ C q (R) for q = 0, 1, 2, . . (F2) f(u, x) ·u ≥ 0, and f u (u, x) ≥ 0 for every u, x ∈ R. (F3) For every υ ≥ 0, sup x∈R, |u|≤υ ∂ q f ∂u q (u, x) <...
Ngày tải lên: 20/06/2014, 20:20