Summary.
We define the notion of self-concordance of order two for the restriction \(f\) of a logarithmic barrier function to a given line. Based on this notion we prove an inner approximation of the domain of \(f\), as well as a lower bound of the distance from a point $t$ to the minimum of \(f\). These results provide the theoretical tools to develop a simple and efficient search step for finding the minimum of the barrier function along a given line. The new bound on the size of the line-search step is better than the optimal bound known for the case of a self-concordant function (of order one). We conclude with some numerical examples that illustrate the promise of the new line-search step.
Similar content being viewed by others
Author information
Authors and Affiliations
Additional information
Received May 24, 1993 / Revised version received February 1994
Rights and permissions
About this article
Cite this article
Jarre, F. A new line-search step based on the Weierstrass \(\wp\)-function for minimizing a class of logarithmic barrier functions . Numer. Math. 68, 81–94 (1994). https://doi.org/10.1007/s002110050049
Issue Date:
DOI: https://doi.org/10.1007/s002110050049