Báo cáo toán học: On coupling constant thresholds in two dimensions " ppt

... article as: Nikitin: On the interchannel interference in digital communication systems, its impulsive nature, and its mitigation. EURASIP Journal on Advances in Signal Processing 2011 2011:137. Submit ... originate at the ‘ smoothest ’,mostlinear parts of the modulating signal. The next section clarifies the origins of this impulsive nature of the out...

Ngày tải lên: 20/06/2014, 21:20

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Ngày tải lên: 05/08/2014, 10:20

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Ngày tải lên: 05/08/2014, 15:21

... different if the ordering cone C is not pointed. So one must be careful when applying results in [4] for efficient points in the sense of (1) (as done in [2, p. 291]). For instance, Corollary 3.11 ... is efficient w.r.t. C in the sense of (2), while A has no efficient point w.r.t. C in the sense of (1). The set of efficient points of A w.r.t. C is called efficient set and denoted by...

Ngày tải lên: 06/08/2014, 05:20

... subdeterminants are in {±2 k : k ∈ Z}. An oriented matriod is dyadic if it has a totally dyadic represen- tation A. A dyadic oriented matriod is dyadic of order k if it has a totally dyadic representation A ... totally dyadic representation A. A dyadic oriented matriod is dyadic of order k if it has a totally dyadic representation A with full row rank a...

Ngày tải lên: 07/08/2014, 06:20

... the Chinese Remainder Theorem, a proof of which was published by Aviezri early in his career [5]. A major problem in molecular biology is to determine the mechanism of protein folding. In water, ... Aviezri, shaking his head sadly, “I expected something like this would happen. Everyone is driving the electronic journal of combinatorics 8 (no. 2) (2001), #I3 2 Aviezri Fraenkel’s work...

Ngày tải lên: 07/08/2014, 06:23

... c 3 m c 4 . This finishes the proof of case B2, of claim B, and of the whole theorem. ✷ Every growth rate n → F n,k is attained by a closed class of permutations (take, for example, the permutations π whose ... 05A05 Abstract A class of permutations Π is called closed if π ⊂ σ ∈ Π implies π ∈ Π, where the relation ⊂ is the natural containment of permutations. Let Π n be the...

Ngày tải lên: 07/08/2014, 07:21

... dealing with partitions whose parts are all  some given N.Welet¯π be that partition made up of the parts of π that are <N. In light of (11) we see that if N is a part of π an even number of ... questions. 2 The Main Theorem We begin with some preliminaries about partitions and their conjugates. For a given partition π with parts each  N,wedenotebyf i (π) the number of...

Ngày tải lên: 07/08/2014, 08:22

... vertices spanning C 4 in G. Color all vertices of U  with color 1 and rainbow color the remaining vertices with colors {2, . . . , k}. Under this coloring, there is a rainbow copy of H containing exactly ... with distinct colors, color the rest of the graph with the remaining colors. Let S induce a rainbow copy of H in G in this coloring. Suppose v ∈ S. Since k − 1 non-neighbors...

Ngày tải lên: 07/08/2014, 15:22

... subgraph of a self-complementary graph H of order n with a cyclic self-complementary permutation. By Lemma 2, we obtain that if the star K 1,k is a subgraph of a self-complementary graph of order ... structure of self-complementary permutations. By Theorem 6, the expectation that a graph is a subgraph of a self-complementary graph H of the same order rises with the n...

Ngày tải lên: 07/08/2014, 15:23

... saturating sets in small projective geome- tries, European J. Combin. 21 (2000), 563–570. [7] A.A. Davydov, S. Marcugini and F. Pambianco, On saturating sets in projective spaces, J. Combin. Theory ... As well as being a natural geometrical problem, the construction of small dense sets in P G(2, q) is relevant in other areas of Combinatorics, as dense sets are related...

Ngày tải lên: 07/08/2014, 15:23

... n 2  2. Then for e  5 the theorem follows from Theorem 5.4 for r = 2 and Theorem 4.1. For e = 3 the theorem is trivial. For r  3 the theorem follows f r om Proposition 5.3, Theorem 5.4 and Theorem ... absolute values of the eigenvalues. The ma- trix B fr om (2.1) satisfies B 2 =  AA ⊤ 0 0 A ⊤ A  , and so the eigenvalues of B 2 are those of AA ⊤ together with those of A...

Ngày tải lên: 07/08/2014, 21:21

... or (iii) B has all attachments in N ′ 2 ∪N ′ 3 ∪N ′ 4 , and each of N ′ 2 , N ′ 3 and N ′ 4 contains at least one such attachment. Proof of Claim 6: If j = 4 and x 2 and x j are not adjacent, then ... such that at most two pair of them are adjacent. Therefore, no non-edge-bridge can have attachments in more than two N ′ i ’s, and if it has atta chments in two N ′ i ’s, say in N ′ i and in .....

Ngày tải lên: 08/08/2014, 12:23

... electronic journal of combinatorics 18 (2011), #P85 6 2 Cubic planar hypohamiltonian graphs on 70 and 88 vertices In this section we present our cubic planar hypohamiltonian graphs on 70 and 88 ... 0- and 1-faces together non-2-faces. Claim 2.1. A cubic planar hypohamiltonian graph has at least three non-2-faces. Proof. Let D be an arbitrary cubic planar hypo...

Ngày tải lên: 08/08/2014, 14:23

... mentioned, the upper bound follows immediately by combining Theorem 5 with the upper bound on δ(c) stated in Theorem 7, using the non-negativity of the o(1) term in Theorem 5. The proof of the lower ... P 8 in color 2. The precise strategy definition is given below in the proof of Proposition 12. The recursion defined in the following evaluates the performance of the str...

Ngày tải lên: 08/08/2014, 14:23