Báo cáo toán học: "Relaxed Graceful Labellings of Trees" pdf

... a little bit of new machinery. An often studied subset of graceful labellings are bipartite graceful (or α -graceful) labellings; the labelling f of G is bipartite if the vertices of G have a bipartition ... variations of gracefulness which relax distinctness conditions (such as equitable labellings) introduce new constraints as well. While in a sense vertex-relaxed gracefu...

Ngày tải lên: 07/08/2014, 06:23

... conductivity values of BLTM were lower than those of undoped BLT ceramic regardless of measurement frequency. This seemed to be the effect of the donor dopant on the electrical conductivity of a p-type ... properties of (1 – x)PMN–xPZT ferroelectric ceramics. Phys Solid State 2000, 42:936-943. 21. Baudry L: Theoretical investigation of the influence of space charges on f...

Ngày tải lên: 20/06/2014, 20:20

... the study of boundary layer flow and heat trans- fer over a stretching surface has achieved a lot of success because of its large numb er of applications in industry and technology. Few of these ... plotting h-curve. The effects of pertinent parameters of nanofluid have been discussed through graphs. 2 Formulation of the problem Consider the steady two-dimensional flow of an inc...

Ngày tải lên: 20/06/2014, 20:20

... monitoring techniques. Because of its novelty, the proposed technique has various potential extensions, such as recognition of various classes of vehicles, development of a traffic surveillance network ... simplest form of a Bayesian network [53]. Another advantage of the naive Bayes classifier is that it only requires a small amount of training data to estimate the parameters (mea...

Ngày tải lên: 20/06/2014, 20:20

... 0, 0 ≤ j ≤ n. Then the solution of (4.4) and (4.5) is bounded if and only if the condition (5.5) is satisfied. Proof. The proof is immediate consequence from proof of Theorem 4.3 with Remark 5.1. Remark ... condition for the boundedness of all solutions of (1.1) and the scalar case of (1.1), respectively. The next result provides a sufficient condition for the boundedness of solution...

Ngày tải lên: 20/06/2014, 20:20

... Introduction The topic of the problem of finite or infinite beams which rest on an elastic foundation has received increased attention in a wide range of fields of engineering, because of its practical design ... norm of the resulting beam deflection cannot be too large compared to that of the input loading w. Meanwhile, the nonlinearity and the non-uniformity of the system sugges...

Ngày tải lên: 20/06/2014, 20:20

... because the number of actual sources of interest is generally much smaller than the number of potential source locations in the region to be observed. A kind of algorithms of sparse r ecovery ... number of the selected principle components i n step (b) of Table 2 is equal to the num- ber of the actual sources ; for lower SNR, the number of the selected principle components i...

Ngày tải lên: 20/06/2014, 20:20

... θ |I 1 |,|I 2 | x I 1  2 x I 2  2 , (15) and this completes the proo f of the lemma. 2.3 Proof of theorem 1.1 Now we turn to the proof of our main theorem. Our proof is in essence based on the mathematical induction; ... order of O(K 2 log n K )] is desirable , since the size of measurements m grows moderately with the sparsity level K. 4 2 Proof of theorem 1.1 2.1 Notations W...

Ngày tải lên: 20/06/2014, 20:20

... also be zero in the case of a network whose connectivity graph is a cycle graph or consists of a union of disjoint cycles. It is this analysis that lead to the concept of a balanced graph: a graph ... The concept of the FTC is illustrated in Figure 12, and also in Figure 7 which distinguishes the FTC of each weakly connected graph of three nodes. We consider a directed graph G...

Ngày tải lên: 20/06/2014, 20:20

... of malignant colorectal tumor lesions could be achieved by (pretargeted) antibody-guided radionuclide imaging. The combination of the specificity of antibody targeting and the sensitivity of ... showed the feasibility of this approach [32]. Translation of this preclinical imaging method to the clinical situation will show the effect of the intrinsic resolution of the clini...

Ngày tải lên: 20/06/2014, 20:20