5 papers
The evolution of the structure of ABC-minimal trees
Seyyed Aliasghar Hosseini, Bojan Mohar, Mohammad Bagher Ahmadi
The atom-bond connectivity (ABC) index is a degree-based molecular descriptor that found diverse chemical applications. Characterizing trees with minimum ABC-index remained an elus…
The strict complementary slackness condition in linear fractional programming
Mahmood Mehdiloozad, Kaoru Tone, Mohammad Bagher Ahmadi
The strict complementary slackness condition (SCSC) is an important concept in the duality theory of linear programming (LP). The current study aims at extending this concept to th…
On classifying decision making units in DEA: A unified dominance-based model
Mahmood Mehdiloozad, Mohammad Bagher Ahmadi, Biresh K. Sahoo
In data envelopment analysis (DEA), the concept of efficiency is examined in either Farrell (DEA) or Pareto senses. In either of these senses, the efficiency status of a decision m…
Identification of reference set and measurement of returns to scale in DEA: A least distance based framework
Mahmood Mehdiloozad, Mohammad Bagher Ahmadi
In data envelopment model (DEA), while either the most or least distance based frameworks can be implemented for targeting, the latter is often more relevant than the former from a…
Finding a maximal element of a convex set through its characteristic cone: An application to finding a strictly complementary solution
Mahmood Mehdiloozad, Kaoru Tone, Rahim Askarpour +1
In order to express a polyhedron as the (Minkowski) sum of a polytope and a polyhedral cone, Motzkin (1936) made a transition from the polyhedron to a polyhedral cone. Based on his…