Báo cáo toán học: "A generalization of Combinatorial Nullstellensatz" pot

... (u) c(v) denote the sum of labels over the the electronic journal of combinatorics 17 (2010), #N32 4 set N(u) of all neighbors of u in G. The function c is called a lucky labeling of G if S(u) = S(w) ... take a product of monomials from factors of h resulting in the monomial M, the sign of M is the same (because G is bipartite and leading coefficients of f v are positive). So...

Ngày tải lên: 08/08/2014, 11:20

Ngày tải lên: 05/08/2014, 15:20

Ngày tải lên: 05/08/2014, 15:20

... actually is a solution of the bibasic hypergeometric telescoping problem (1). This completes the proof of the correctness of Algorithm Telescope p,q . the electronic journal of combinatorics 3 (1996), ... of all coefficient-denominators of ¯ P,letg denote the greatest common divisor of all coefficients of l · ¯ P , and define z := g/l. Then, for P ∗ := z −1 · ¯ P , the bibasic moni...

Ngày tải lên: 07/08/2014, 06:20

... the number of diagram squares of rank at least m − 2. In particular, π avoids all patterns of A m if and only if every diagram square is of rank at most m − 3. the electronic journal of combinatorics ... total number of returns in Dyck paths of length 2n is equal to 3 2n+1  2n+1 n−1  . Each tunnel of length 2 and positive height is just the connection line of a high peak.(...

Ngày tải lên: 07/08/2014, 07:21

... choice of a special element of highest order among the 7 different expressions of S 1 has the advantage of enhancing the computing efficiency of the clique number of G n (A i ). 3 The computation of ... set of representatives of all equivalence classes i n (A i , ≺). If d i (x) = 0 for every x ∈ M, then [A i ] = 1. the electronic journal of combinatorics 17 (2010), #N25 5 A...

Ngày tải lên: 08/08/2014, 11:20

... F q –linear set L(S) of P = P G(V, F q 3 ) o f rank 6 having a unique point P of weight 2 (and hence a unique p l ane π of P of weight 5) and each other point of weight 1. Moreover, if one of the following ... mifield S of F 3 is of type (i, j), then the transpose semifield S t of S is of type (i, j) as well. Proof. It follows from previous arguments and from Proposition 2.3...

Ngày tải lên: 08/08/2014, 12:23

... 7 2 ) represents the profile of any permutation of size 25 that has three cycles of length 2, one cycle of length 5, and two cycles of length 7. The probability a π that a random permutation of size n has profile π ... finite field has factors of distinct degrees, and the number of forests composed of trees of different sizes. Plan of the paper. We start by recalling in Secti...

Ngày tải lên: 07/08/2014, 13:21

... f'mite set of symbols, so there is only a finite number of strings of given length L, and it has a finite number of rules, so there is only a finite number of possible parse trees of given depth ... the acyclic backbone G' of a unification grammar G, it decides whether G' is depth-bounded. The idea of the generalization is to use a set S of pairs of...

Ngày tải lên: 21/02/2014, 20:20

Ngày tải lên: 05/08/2014, 09:46