Abnormal and Singular Solutions in the Target Guarding Problem with Dynamics

Matthew W. Harris ()
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Matthew W. Harris: Utah State University

Journal of Optimization Theory and Applications, 2020, vol. 184, issue 2, No 16, 627-643

Abstract: Abstract The topic of this paper is a two-player zero-sum differential game known as the target guarding problem. After a brief review of Isaacs’ original problem and solution, a problem with second-order dynamics and acceleration control is considered. It is shown that there are four solution classes satisfying the necessary conditions. The four classes are (i) abnormal and non-singular, (ii) normal and non-singular, (iii) normal and pursuer singular, (iv) normal and evader singular. The normal and totally singular case is ruled out. Closed-form solutions are provided for cases ii–iv. The order of singularity in all cases is infinite. Thus, the problem exhibits many interesting properties: normality, abnormality, non-singularity, infinite-order singularity, and non-uniqueness. A practical example of each class is provided.

Keywords: Abnormality; Singularity; Differential games; Target guarding (search for similar items in EconPapers)
Date: 2020
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DOI: 10.1007/s10957-019-01597-6

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