Báo cáo toán học: "On a problem of Marco Buratti" pps

... 2011:193 http://jwcn.eurasipjournals.com/content/2011/1/193 Page 3 of 10 RESEARCH Open Access On transmission performance of OFDM-based schemes using MMSE-FDE in a frequency- selective fading channel Haris Gacanin 1* and ... Channel capacity of OFDM/TDM using MMSE-FDE From here on, we analyze capacity of the OFDM/TDM using MMSE-FDE based on the assumpti...

Ngày tải lên: 20/06/2014, 21:20

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Ngày tải lên: 05/08/2014, 10:20

... class="bi x0 y0 w1 h 1" alt =""

Ngày tải lên: 05/08/2014, 15:21

... 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

... C. Evans, Partial Diff. Equations, American Math. Society, 1998. 5. C. Vargas an d M. Zuluaga, On a Nonlinear Dirichlet Problem Type at Resonance and Bifurcation, Partial Differential Equations, ... Elliptic Equations on an Unbounded Domain Hoang Quoc Toan Fa culty of Math., Mech. and Inform. Vietnam National University, 334 Nguyen Trai, Hanoi, Vietnam Received Ma y 12, 2004...

Ngày tải lên: 06/08/2014, 05:20

... Journal of Mathematics 34:4 (2006) 389–395 On the Approximability of Max -Cut Le Cong Thanh Institute of Mathematics, 18 Hoang Quoc Viet Road, 10307 Hanoi, Vietnam Dedicated to Professor Do Long ... and is based on some estimations (obtained in Sec. 2) of the cardinality of cuts for almost every graph. 2. Estimations of the Cardinality of Cuts We shall consider in th...

Ngày tải lên: 06/08/2014, 05:20

... follows that the polynomial P (X)=(X + x)(X + x)(X + y)(X + y) On a Class of Constant Weight Codes Mihai Caragiu Institute of Mathematics Bucharest and Department of Mathematics, Pennsylvania State ... of all the rows of the remaining matrix can be seen (by replacing each occurrence of a −1 with 0) as a nonlinear code of length n =4t −1havingaconstantweight[n/2] = 2...

Ngày tải lên: 07/08/2014, 06:20

... sequences. Although only known tech- niques [G] are used, these are sophisticated, and the problem serves as a useful study of these techniques, and the algebraic analysis gives partial information about ... have all n non-terminal symbols, we give a combinatorial interpretation for the transformation L (r) w . After the application of L (r) w to A, the last step is the placement of...

Ngày tải lên: 07/08/2014, 06:20

... ,|E|, assign to w i,j the list L(w i,j )=e j . the electronic journal of combinatorics 9 (2002), #N9 2 On a theorem of Erd˝os, Rubin, and Taylor on choosability of complete bipartite graphs Alexandr ... t-coloring of a hypergraph H is panchromatic if each of the t colors is used on every edge of G. Thus, an ordinary 2-coloring is panchromatic. Some results...

Ngày tải lên: 07/08/2014, 06:23

... Orthogonal Polynomials and Applications (VII SPOA) (Granada, 1991), J. Comput. Appl. Math. 49:1–3 (1993), 243–249. [6] A. L. Schmidt, “Legendre transforms and Ap´ery’s sequences”, J. Austral. Math. ... On a combinatorial problem of Asmus Schmidt W. Zudilin ∗ Department of Mechanics and Mathematics Moscow Lomonosov State University Vorobiovy Gory, GSP-2, Moscow 119992 RUSSIA URL:...

Ngày tải lên: 07/08/2014, 08:20

... trapezoid. The position of the slanting dividing line is chosen such that the measure of balanced α above the line and inside the sector equals the measure of balanced α below the line and inside the ... change at the halfway mark. Thus either the left half of the block is red and the right half is blue, or vice versa. Ob- serve that the number of terms in...

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

... Buratti Peter Horak University of Washington Tacoma, WA 98402 horak@u.washington.edu Alexander Rosa McMaster University Hamilton, Ontario, Canada rosa@mcmaster.ca Submitted: Apr 9, 2008; Accepted: Jan 21, ... the sum of a j s must be at least as large as the g.c.d. (A J ) − 1 where A J contains q and all a i s that are not in J. The necessity of the above conditions can be shown...

Ngày tải lên: 07/08/2014, 21:21

... 7 On a Generalization of Meyniel’s Conjecture on the Cops and Robbers Game Noga Alon ∗ Tel Aviv University and Institute for Advanced Study, Princeton nogaa@tau.ac.il Abbas Mehrabian Department ... 05C57 Abstract We consider a variant of the Cops and Robbers game where the robber can move s edges at a time, and show that in this variant, the cop nu...

Ngày tải lên: 08/08/2014, 12:23

... discussions with Eva Czabarka, Ida Kantor, Gyula O.H. Ka t ona, Nathan Lemons, Bal´azs Patk´os, L´aszl´o Sz´ekely, and Jacques Verstraăete. The author thanks the NSF for funding her and IPAM for hosting ... University of California San Diego, La Jolla, CA, 92093, USA. E-mail: anchowdh@math.ucsd.edu the electronic journal of combinatorics 18 (2011), #P56 1 Frankl and Făuredi [7] v...

Ngày tải lên: 08/08/2014, 14:22