Multiobjective transportation problem with interval cost,source and destination parameters

In this paper, we focus on the solution procedure of the multiobjective transportation problem (MOTP) where the cost coefficients of the objective functions, and the source and destination parameters have been expressed as interval values by the decision maker. This problem has been transformed into a classical MOTP where to minimize the interval objective function, the order relations that represent the decision maker's preference between interval profits have been defined by the right limit, left limit, centre, and half-width of an interval. The constraints with interval source and destination parameters have been converted into deterministic ones. Finally, the equivalent transformed problem has been solved by fuzzy programming technique. Numerical examples have been provided to illustrate the solution procedure for three possible cases of the original problem.     

利用$(s,t)$-微分算子和拟从属定义的双单叶函数新子类的系数相关问题研究

本文中,我们引进了由$(s,t)$-微分算子和拟从属定义的一类广义双单叶函数类. 对该新函数类及其子类,利用Faber多项式展开式我们得到了前两项系数$|a_2|$, $|a_3|$和一般项系数$|a_n|~(n\geq 4)$的估计,然后也解决了Fekete-Szeg\"{o}问题.     

用广义拟Hadamard卷积定义的广义积分算子的封闭性质

首先利用广义拟-Hadamard卷积引入一个广义积分算子;其次,应用两个经典不等式和系数不等式研究广义积分算子及其特殊殊算子在某些非标准化广义解析函数类上的封闭性质.     

完全三部图K(n_1,n_2,n_3)的色唯一性

设G是简单图,用P(G,λ)表示图G的色多项式.若对任意简单图H使P(H,λ)=P(G,λ),都有H与G同构,则称G是色唯一图.令K(n     

Exact and explicit travelling wave solutions for the nonlinear Drinfeld–Sokolov system

The Drinfeld–Sokolov (DS) system is investigated by using the tanh method and the sine–cosine method. A variety of exact travelling wave solutions with compact and noncompact structures are formally derived. The study reveals the power of the two schemes in handling identical systems.     

弱拟正则映射的若干性质

本文应用Ｈｏｄｇｅ分解,得到了弱拟正则映射的逆Ｈ　　ｌｄｅｒ不等式,Ｌｐ可积性与其分量函数的弱单调性结果．     

Solution for fractional Zakharov–Kuznetsov equations by using two reliable techniques

In this paper, the approximated analytical solutions for nonlinear dispersive fractional Zakharov-Kuznetsov (FZK(a, b, c)) equations are obtained with the help of two novel techniques, called fractional natural decomposition method (FNDM) and q-homotopy analysis transform method (q-HATM). In order to validate and illustrate the efficiency of the proposed techniques, we consider two special cases FZK(2, 2, 2) and FZK(3, 3, 3) in FZK(a, b, c). The numerical simulations have been conducted in order to verify the proposed techniques are reliable and accurate. The outcomes are revealed through the plots and tables. The comparison between the obtained solutions with the exact solutions exhibits that, both the featured schemes are efficient and effective in solving nonlinear complex problems.