Vol. 19 No. 1 (2009)

Published: 2009-03-01

Research Articles

An overview on polynomial approximation of NP-hard problems

Vangelis Th. Paschos

3-40
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On duality for nonsmooth Lipschitz optimization problems

Vasile Preda, Miruna Beldiman, Antoan Bătătorescu

41-47
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Optimality and duality for a class of nondifferentiable minimax fractional programming problems

Antoan Bătătorescu, Miruna Beldiman, Iulian Antonescu, Roxana Ciumara

49-61
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Duality for multiobjective fractional programming problems involving d -type-I n-set functions

I.M. Stancu-Minasian, Gheorghe Dogaru, Mădălina Andreea Stancu

63-73
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On solving stochastic MADM problems

Ion Văduva, Cornel Resteanu

75-83
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Efficiency and duality for multiobjective fractional variational problems with (ρ,b) - quasiinvexity

Ştefan Mititelu, I.M. Stancu-Minasian

85-99
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Gordon and Newell queueing networks and copulas

Daniel Ciuiu

101-112
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Realization of knapsack problem solving algorithm and some of its applications

Dimiter Ivanchev, Elena Radovanova

113-122
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A primal-dual exterior point algorithm for linear programming problems

Nikolaos Samaras, Angelo Sifelaras, Charalampos Triantafyllidis

123-132
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Using simplex method in verifying software safety

Milena Vujošević-Janičić, Filip Marić, Dušan Tošić

133-148
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Penalty method for fuzzy linear programming with trapezoidal numbers

Bogdana Stanojević, Milan Stanojević

149-156
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A dual exterior point simplex type algorithm for the minimum cost network flow problem

George Geranis, Konstantinos Paparizzos, Angelo Sifaleras

157-170
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Relationship between inflation and inflation uncertainty: The case of Serbia

Zorica Mladenović

171-183
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Reducing e-commerce risks using digital certificates

Miloš Piščević, Dejan Simić

185-194
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The distribution of time for Clark's flow and risk assessment for the activities of pert network structure

Duško Letić, Vesna Jevtić

195-207
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