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一种新修正拟牛顿法的超线性收敛性 被引量:3
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作者 侯建文 张海斌 《河北师范大学学报(自然科学版)》 CAS 2000年第4期439-440,共2页
拟牛顿法是无约束极小化中最有效的算法之一 .通过讨论一种基于新拟牛顿方程的修正拟牛顿法 。
关键词 新拟牛顿方程 局部超线性收敛性 无约束极小化 修正拟牛顿法 收敛速度 近似海色阵 目标函数 算法
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A Class of Singular Coupled Systems of Superlinear Monge-Ampère Equations 被引量:1
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作者 Mei-qiang FENG 《Acta Mathematicae Applicatae Sinica》 SCIE CSCD 2022年第4期925-942,共18页
In this paper,we analyze the existence,multiplicity and nonexistence of nontrivial radial convex solutions to the following system coupled by singular Monge-Ampère equations{det D^(2)u_(1)=λh_(1)f_(1)(-u_(2))in... In this paper,we analyze the existence,multiplicity and nonexistence of nontrivial radial convex solutions to the following system coupled by singular Monge-Ampère equations{det D^(2)u_(1)=λh_(1)f_(1)(-u_(2))inΩ,det D^(2)u2=λh_(2)f_(2)(-u_(1)),u_(1)=u_(2)=0,onəΩinΩfor a certain range ofλ>0,hi are weight functions,f_(i)are continuous functions with possible singularity at 0 and satisfy a combined N-superlinear growth at∞,where i∈{1,2},Ωis the unit ball in N.We establish the existence of a nontrivial radial convex solution for smallλ,multiplicity results of nontrivial radial convex solutions for certain ranges ofλ,and nonexistence results of nontrivial radial solutions for the caseλ≥1.The asymptotic behavior of nontrivial radial convex solutions is also considered. 展开更多
关键词 Two coupled Monge-Ampère equations Combined n-superlinear growth at∞ Singular weight functions EXISTENCE multiplicity and nonexistence Asymptotic behavior
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