https://shcpub.in/index.php/cm/issue/feed 2026-01-13T06:27:03+00:00 Dr. G. Britto Antony Xavier editorinchief-cm@shcpub.in Open Journal Systems https://shcpub.in/index.php/cm/article/view/449 2026-01-13T06:27:03+00:00 Affan Ahmed J contact@gmail.com Govindaraju P contact@gmail.com Rizwan U contact@gmail.com Mohamed Ali A contact@gmail.com

<p>In this paper, we consider on a multistate degenerative system with k working states and <em>l</em>-failure states and study the maintenance problems under various bivariate replacement polices (<em>T, N</em>)<em>,</em>(<em>T </em>+<em>, N</em>)<em>,</em>(<em>U, N</em>)<em>,</em>(<em>U </em><em>−</em><em>, N</em>). The long-run average cost of a multistate degenerative system is calculated. Under the afore-mentioned bivariate replacement policies under partial product process optimality in inferred. In this study, the results developed are strengthened with numerical examples.</p>

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