"Teoria dei grafi." . . "Programmazione lineare." . . "Simplexverfahren." . . "Entartungsgraph." . . "Entartungsgraph" . "Kreisen des Simplexalgorithmus." . . "Kreisen des Simplexalgorithmus" . "Algorithme simplexe." . . "Dégénérescence." . . . . "Programmation linéaire." . . "Systems theory." . . "Graphe dégénéré" . . "Optimisation." . . "Lineare Optimierung." . . "Graphentheorie." . . "Graphes, Théorie des." . . . . . "Degeneracy Graphs and Simplex Cycling" . "Degeneracy graphs ans simplex cycling" . . . . . . "Many problems in economics can be formulated as linearly constrained mathematical optimization problems, where the feasible solution set X represents a convex polyhedral set. In practice, the set X frequently contains degenerate verti- ces, yielding diverse problems in the determination of an optimal solution as well as in postoptimal analysis. The so- called degeneracy graphs represent a useful tool for des- cribing and solving degeneracy problems. The study of dege- neracy graphs opens a new field of research with many theo- retical aspects and practical applications. The present pu- blication pursues two aims. On the one hand the theory of degeneracy graphs is developed generally, which will serve as a basis for further applications. On the other hand dege- neracy graphs will be used to explain simplex cycling, i.e. necessary and sufficient conditions for cycling will be de- rived." . . . . . . . . . . . . . . . . . . . . "Degeneracy graphs and simplex cycling" . "Degeneracy graphs and simplex cycling"@en . . . . . . . . "Electronic books" . . . . .