Báo cáo toán học: "Discrepancy of Sums of Three Arithmetic Progressions" ppsx

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Ngày tải lên: 05/08/2014, 10:20

Ngày tải lên: 05/08/2014, 15:20

... generalized solutions of the first initial b oundary value problem for strongly Schrăodinger systems in domains with conical p oints on boundary are given. 1. Introduction Boundary value problems for Schrăodinger ... (2.14) Vietnam Journal of Mathematics 33:2 ( 2005) 135–147 On the Smoothness of Solutions of the First Initial Boundary Value...

Ngày tải lên: 06/08/2014, 05:20

... output of the HH -signaling pathway [31,34,35], these could be used as antagonists for the treatment of tumors. The diffi- culty of delivering them into cells might require the devel- opment of in ... repressors Loss -of- function: Holoprosencephaly Agonist: SHH Hh-Ag* *Hh-Ag is the Hh agonist described by Frank-Kamenetsky et al. [1]. Minireview The therapeutic poten...

Ngày tải lên: 06/08/2014, 18:20

... valuation of each factor, and thus of the entire product. Let ζ be a primitive (2n + 1)-st root of unity, and define α i,j = ζ i + ζ −i + ζ j + ζ −j . Then the number of domino tilings of a 2n ì ... quasi-polynomial over , and satisfies U k (−1 − n)=U k (n). 2-ADIC BEHAVIOR OF NUMBERS OF DOMINO TILINGS HENRY COHN DEPARTMENT OF MATHEMATICS, HARVARD UNIVERSITY CAMBRIDGE,...

Ngày tải lên: 07/08/2014, 06:20

... journal of combinatorics (2000),#R46 5 are n ≤ 27, and these proofs involve substantial computation as the value of n increases, and the examination of an exponentially increasing number of cases. Before ... for packing disks in squares. Improving Dense Packings of Equal Disks in a Square David W. Boll Jerry Donovan Ronald L. Graham Boris D. Lubachevsky Hewlett-Pack...

Ngày tải lên: 07/08/2014, 06:20

... , the electronic journal of combinatorics 8 (2001), #R22 8 On Coset Coverings of Solutions of Homogeneous Cubic Equations over Finite Fields Ara Aleksanyan Department of Informatics and Applied ... =0. Coverings by cosets were also considered by R. Jamison in the study of 1-intersection sets in affine spaces over finite fields. In [6] the minimum number of cosets...

Ngày tải lên: 07/08/2014, 06:22

... (2002), #R44 3 Thue-like sequences and rainbow arithmetic progressions Jaroslaw Grytczuk Institute of Mathematics, University of Zielona G´ora, 65-246 Zielona G´ora, Poland J.Grytczuk@im.uz.zgora.pl Submitted: ... integers and let A(R) denote the event that R does not contain a rainbow arithmetic progression of length k and difference r. Consider a dependency graph G =(V, E...

Ngày tải lên: 07/08/2014, 07:21

... to the root, and then assigning the polarity of additional vertices in the order given by a breadth-first search of the minimum spanning tree.) If this function is the one that comes up, then the ... variable Z n be the cost of the minimum spanning tree when the edges of the complete graph K n have costs selected independently and uniformly at random in t...

Ngày tải lên: 07/08/2014, 13:21

... regular graph and e be an edge of G. If H is a component of G e with à (H) = à (G e) , then à (G) µ (H) > 1 Diam (H) |H| . This lemma follows easily from Theorem 2.1 of [2] and its proof ... its proof is omitted. Proofs Proof of Theorem 2 Write dist F (s, t) for the length of a shortest path joining two vertices s and t in a graph F. Write d for the degree of G, let H = G uv,...

Ngày tải lên: 07/08/2014, 13:21

... of parts of λ is called the length of λ, denoted by l(λ). The weight of λ is the sum of parts, denoted by |λ|. We let P(n) denote the set of partitions of n. Let spt(n) denote the number of smallest ... give a combinatorial proof of Andrews’ smallest parts partition function with the aid of rooted partitions introduced by Chen and the author. 1 Introductio...

Ngày tải lên: 07/08/2014, 15:22

... 417–420. the electronic journal of combinatorics 15 (2008), #N36 5 Uniquely Hamiltonian Characterizations of Distance-Hereditary and Parity Graphs Terry A. McKee Department of Mathematics & Statistics Wright ... H is an induced subgraph of G and so has an even number of hamiltonian cycles. Suppose v  is the twin of some v ∈ V (G). If v  ∈ V (H), then H has an...

Ngày tải lên: 07/08/2014, 15:22

... (g, a 1 , . . . , a k−1 ). Since S is zero-sum free and g = −g, we have that a 1 , a 1 + a 2 , . . . , a 1 + a 2 + . . . + a k−1 g, g + a 1 , g + a 1 + a 2 , . . . , g + a 1 + a 2 + . . . + a k−1 are ... #R52 2 On Subsequence Sums of a Zero-sum Free Sequence Fang Sun Center for Combinatorics, LPMC Nankai University, Tianjin, P.R. China sunfang2005@...

Ngày tải lên: 07/08/2014, 15:22

... to appear in Advanced Courses in Mathematics CRM Barcelona. [9] A. Geroldinger and F. Halter-Koch, Non-Unique Factorizations. Algebraic, Combina- torial and Analytic Theory, Pure and Applied Mathematics, ... + B = {a + b | a ∈ A, b ∈ B} denotes their sumset. The stabilizer of A is defined as Stab (A) = {g ∈ G | g + A = A} , A is called periodic if Stab (A) = {0}, and we set A =...

Ngày tải lên: 07/08/2014, 21:20

... 5 1A4 5, 5 1A5 0 Abstract Let ∆ be a symplectic dual polar space DW (2n−1, K) or a Hermitian dual polar space DH(2n − 1, K, θ), n ≥ 2. We define a class of hyperplanes of ∆ arising from its Grassmann-embedding ... lemma, we collect some the electronic journal of combinatorics 16 (2009), #R1 11 On a class of hyperplanes of the symplectic and Hermi...

Ngày tải lên: 07/08/2014, 21:21