Algorithms for computing the global infimum and minimum of a polynomial function

Science China Mathematics - Tập 55 - Trang 881-891 - 2011
ShuiJing Xiao1, GuangXing Zeng1
1Department of Mathematics, Nanchang University, Nanchang, China

Tóm tắt

By catching the so-called strictly critical points, this paper presents an effective algorithm for computing the global infimum of a polynomial function. For a multivariate real polynomial f, the algorithm in this paper is able to decide whether or not the global infimum of f is finite. In the case of f having a finite infimum, the global infimum of f can be accurately coded in the Interval Representation. Another usage of our algorithm is to decide whether or not the infimum of f is attained when the global infimum of f is finite. In the design of our algorithm, the well-known Wu’s method plays an important role.

Tài liệu tham khảo

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