5 research outputs found
Complete solution of a constrained tropical optimization problem with application to location analysis
We present a multidimensional optimization problem that is formulated and
solved in the tropical mathematics setting. The problem consists of minimizing
a nonlinear objective function defined on vectors over an idempotent semifield
by means of a conjugate transposition operator, subject to constraints in the
form of linear vector inequalities. A complete direct solution to the problem
under fairly general assumptions is given in a compact vector form suitable for
both further analysis and practical implementation. We apply the result to
solve a multidimensional minimax single facility location problem with
Chebyshev distance and with inequality constraints imposed on the feasible
location area.Comment: 20 pages, 3 figure
Algebraic solutions of tropical optimization problems
We consider multidimensional optimization problems, which are formulated and
solved in terms of tropical mathematics. The problems are to minimize
(maximize) a linear or nonlinear function defined on vectors of a
finite-dimensional semimodule over an idempotent semifield, and may have
constraints in the form of linear equations and inequalities. The aim of the
paper is twofold: first to give a broad overview of known tropical optimization
problems and solution methods, including recent results; and second, to derive
a direct, complete solution to a new constrained optimization problem as an
illustration of the algebraic approach recently proposed to solve tropical
optimization problems with nonlinear objective function.Comment: 25 pages, presented at Intern. Conf. "Algebra and Mathematical Logic:
Theory and Applications", June 2-6, 2014, Kazan, Russi
Tropical pseudolinear and pseudoquadratic optimization as parametric mean-payoff games
We apply an approach based on parametric mean-payoff games to develop
bisection and Newton schemes for solving problems of tropical pseudolinear and
pseudoquadratic optimisation with general two-sided constraints.Comment: 30 pages (with appendices), 9 figure