Báo cáo toán học: " Completing partial Latin squares with two filled rows and two filled columns" pdf

... partial Latin square of order n ≥ 8 with two filled rows α and β, and one partially filled row γ with at most three filled cells. Suppose further that at most two cells in rows other than α, β and γ ... journal of combinatorics 15 (2008), #R56 18 Completing partial Latin squares with two filled rows and two filled columns Peter Adams, Dar...

Ngày tải lên: 07/08/2014, 15:23

... of times in A and B (for the signed version, we count together the occurrences of a symbol with positive and negative signs). Clearly, this is a necessary and sufficient condition for A and B to have ... − 1}. For two strings A and B, we say that S is a common substring with respect to the relation = if S is a substring of A and a substring of B; we say that S is a common subs...

Ngày tải lên: 07/08/2014, 15:22

... class="bi x0 y1 w1 h 4" alt =""

Ngày tải lên: 05/08/2014, 15:20

... in- tegers and whose rows and columns sum up to the same number j. The number of magic squares of order k with row and column sum j, denoted by H k (j), is of great interest; see [22] and references ... det  1 2π  2π 0 f(e iθ )g(e −iθ )e i(j−k)θ dθ  0≤j,k≤N . (41) Applying this lemma with f(z)=z − λ and g(z)=z − µ with z = e iφ and µ = e iχ and letting x = e i(φ−χ)...

Ngày tải lên: 07/08/2014, 08:22

... the other hand, suppose e 1 and e 2 belong to  1 and  2 respectively. Let p be one of the two arrangement vertices where  1 and  2 cross. If A is not a pencil, at most one of these two crossings ... points and lines of the oriented projective plane are combinatorially equivalent to points and great circles on a sphere: any line has the topology of the circle, and any two...

Ngày tải lên: 07/08/2014, 13:21

... cycle. For example, we cannot swap H and A between 0 and 1, and simultaneously swap H and A between 2 and 3. The next figure shows an example obtained by swapping H and A for each of pairs at a distance ... game and team 3 is assigned to an away game. Consider the schedule such that two matches {1, 3}, {2, 4} are held on the first day, two matches {1, 2}, {3, 4} are held on th...

Ngày tải lên: 07/08/2014, 21:21

... square whose entries are distinct positive integers and that x M and x m denote the largest and smallest entry in X, respectively. We start with the following preliminary result. the electronic ... column, and the two diag onals ar e all equal. We write s(A) for this common va lue. A multiplicative magic square has the property that the products of the entries in each row, column,...

Ngày tải lên: 08/08/2014, 01:20

... ballot problem. Recall that in the ballot problem, two candidates A and B square off in an election, with A receiving a votes and B receiving b votes (with a = pt + r, b = p in our notation). The original ... Renault [9] and Tak´acs [13]), and rank order statistics in g eneralized random walks (see Saran and Ra ni [10]). When t = 1, the corresponding paths are known as ballo t p...

Ngày tải lên: 08/08/2014, 12:23

... time (analysis and simulation) for the Sparse sce- nario. Figure 13: ETSI SLAAC configuration time (analysis and simulation with OMNeT++). Figure 14: ETSI SLAAC configuration time (analysis and simulation with ... self-organized multi-hop network. This multi-hop network is used to forward packets between the RSU and the CCUs within the RSU’s area of influence (i.e., associated GVL ar...

Ngày tải lên: 20/06/2014, 20:20

... with the low band to full band energy ration (LFER) for efficient speech/non-speech segments. However, the algorithms based on the speech features with heuristic rules have difficulty in coping with all ... recognition and noise suppression methods is given in Section 3. The detail experiments and simulation results are shown in Section 4. Finally, the discussion and conclusion are dr...

Ngày tải lên: 20/06/2014, 20:20