摘要
给出一类新的 BFGS校正公式 ,讨论其矩阵的正定性、二次终止性和方向共轭性 ,并在适当条件下建立该方法的全局收敛性 .
The new BFGS method given in this paper not only posesses the properties contained in the normal BFGS method,but overcomes the disadvantage of the old one because the latter cannot ensure the positive definite of update matrix. Our aim is to discuss the properties of the proposed method and establish it's global convergence under suitable conditions.
出处
《广西科学》
CAS
2004年第3期197-200,共4页
Guangxi Sciences
