مهدی جهانگیری

‎In this paper‎, ‎one of the most famous NP-complete problems in graph theory‎, ‎the total dominating set problem‎, ‎was investigated and a new quadratic integer programming model was presented‎. ‎Finally‎, ‎an SDP relaxation models are proposed‎. ‎Finding the efficiency of the relaxation could be a future research direction‎.