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Finite difference approximate solutions for a mixed sub-superlinear equation

机译:混合亚超线性方程的有限差分近似解

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In Ben Mabrouk and Ben Mohamed (2006) [A. Ben Mabrouk, M.L. Ben Mohamed, On some critical and slightly super-critical sub-superlinear equations. Far East J. Appl. Math. 23(l) (2006) 73-90, Special Volume of PDEs; A. Ben Mabrouk, M.L. Ben Mohamed, Nodal solutions for some nonlinear elliptic equations, Appl. Math. Comp., in press, doi:10.1016/j.amc.2006.08.003], it has proved some theoretical results dealing with some boundary value problem Delta u + f(u) = 0 in B and u = 0 on partial derivative B, where B is a domain in R-d with smooth boundary. In the present paper, we perform a difference scheme method to approximate the solution of a nonlinear evolutionary problem associated to the elliptic problem studied in Ben Mabrouk and Ben Mohamed (2006). We give at the end some numerical implementations based on a mixed sublinear superlinear term of the form f(u) = vertical bar u vertical bar(p-1)u + lambda vertical bar u vertical bar(q-1)u. (C) 2006 Elsevier Inc. All rights reserved.
机译:在Ben Mabrouk和Ben Mohamed(2006)中[A.本·马布洛克(Men。本·穆罕默德(Ben Mohamed),论一些临界和稍微超临界的次超线性方程。远东J.数学。 23(l)(2006)73-90,《偏二苯醚的特殊数量》; A.Ben Mabrouk,M.L. Ben Mohamed,一些非线性椭圆方程的节点解,应用。数学。 Comp。,印刷中,doi:10.1016 / j.amc.2006.08.003],它已经证明了一些理论结果,该结果涉及某些边值问题Delta u + f(u)= 0在B中,u = 0在偏导数B上,其中B是Rd中具有平滑边界的域。在本文中,我们执行差分方案方法来近似求解与Ben Mabrouk和Ben Mohamed(2006)研究的椭圆问题有关的非线性演化问题的解。最后,我们基于f(u)=竖线u竖线(p-1)u +λ竖线u竖线(q-1)u的混合亚线性超线性项给出一些数值实现。 (C)2006 Elsevier Inc.保留所有权利。

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