Báo cáo toán học: "Relaxations of Ore’s condition on cycles" potx

... ν ab is stronger than Bondy-Chv`atal’s hamiltonian closure condition ([11]) since d(a)+d(b) ≥ n ⇔ α ab ≤ λ ab . The second part of the condition (ncc) is a relaxation of a strongest one given ... based on the concept of the hamiltonian closure ([11], [1], [2]). The two conditions of closure developed in [1], [2] are both generalizations of Bondy-Chv`atal’s closure. To state th...

Ngày tải lên: 07/08/2014, 13:21

... conditions. This assumption is supported by the already demon- strated significant correlation between the toxicity of fraction 2 with the conce ntration levels of the pharma- ceuticals diclofenac ... dilution effect. This finding could indicate a dominant influence of wastewater constituents on the toxicity of the recombinant samples under dry weather conditions. An infl uence of...

Ngày tải lên: 20/06/2014, 20:20

... production, which accounts for a large part of the upstream CO 2 econtri- bution of conventional agricultural production. Accounting for all sources, the production of 1 t of wheat yields a CED of ... possible to consider the different conditions of production specific to various farming regions. Despite these uncertainties, the positive effects of reducing meat consumption and...

Ngày tải lên: 20/06/2014, 21:20

... variants of several well-known inequalities. In Section 2 we give generalizations of the discrete ˇ Ceby ˇ sev’s inequality for two mono- tonic n-tuples and also for k ≥ 3 nonnegative n-tuples monotonic ... Pe ˇ cari ´ c’s generalizations of the discrete Ostrowski’s inequalities. In Section 4 we use results from Section 2 to obtain generalizations of Milne’s inequality and its convers...

Ngày tải lên: 22/06/2014, 21:20

... of Young diagrams. The proof of 1.2 is based on the properties of shifted Schur functions[Ok.Ol ]which appeared in the asymptotic theory of the representation theory of the symmetric groups in[Ver.Ker]. ... the study of the hook formula for various kinds of Young diagrams. The proofs are based on properties of shifted Schur functions, due to Okounkov and Olshanski. The the...

Ngày tải lên: 07/08/2014, 06:20

... concentration than the other treatments, whereas the moderately conditioned ones presented the highest concentration (table II). Shoot starch concentration increased with condition- ing ... dehydration tol- erance. Drought conditioning did not improve RGC, strong conditioning depressing formation of new roots. Neither nitrogen nor non-structural carbohyd...

Ngày tải lên: 08/08/2014, 14:21

... a role only in thin layers, and it is responsible for the reduction of the electric conductivity of thin layers [8]. Mathematical formula for the calculation of relaxation times for more than one ... Properties of metal layers are affected by electron scattering on phonons, on imperfections, and at layer boundaries. While the first two types of scattering occur also in b ulk met...

Ngày tải lên: 21/06/2014, 06:20

... diagonal by this value. Similarly, the value of x + y is the same for each square on a sum diagonal, and we associate this value to the diagonal. The long diagonals of Q n are difference diagonal 0 ... dominating set. Definitions. Let n be an odd positive integer and suppose that D is a set of squares of Q n containing a square of each long diagonal. the electronic journal of comb...

Ngày tải lên: 07/08/2014, 06:22

... length of the shortest path connecting them. The diameter of G is the longest distance between any two vertices of G. 3 Discussion of the bounds Let us now discuss the bounds in Conjecture 1. On one ... most 3. Barr and Johansson [2], and independently Sun [11], proved the conjecture for all trees of diameter 4. Our main result is a proof of Conjecture 1 for all trees of diame...

Ngày tải lên: 07/08/2014, 21:20

... interventions are developed that reduce consecutive work hours to ensure the safety of patient care. We believe, however, that development of ‘a sense of professionalism’ is not a function of whether ... [2]. Letter Effect of intern’s consecutive work hours on safety, medical education and professionalism Christopher P Landrigan, Steven W Lockley and Charles A Czeisler Division o...

Ngày tải lên: 25/10/2012, 10:45