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Der gegenwärtige Stand der stochastischen Programmierung
Unternehmensforschung - Tập 12 - Trang 81-95 - 1968
P. Kall
Wenn in einem linearen Programm einige oder alle Koeffizienten Zufallsvariable sind, verliert die Zielsetzung dieses linearen Programmes offenbar ihren Sinn. Die dann auftretenden neuen Problemstellungen, die bisher in der Literatur behandelt wurden, sollen in dieser Arbeit diskutiert werden: Das Verteilungsproblem, das Programm mit Wahrscheinlichkeitsrestriktionen und das zweistufige Problem.
Kürzeste Wege in gemischten Netzen
Unternehmensforschung - Tập 20 - Trang B63-B76 - 1976
S. Thümmler
Zur Ermittlung kürzester Wege in Netzen, die aus einander überlagernden Teilnetzen bestehen (wie z.B. Verkehrsnetze aus mehreren Netzen verschiedener Verkehrsbetriebe), wird der Algorithmus vonDijkstra erweitert. Bei der Wegsuche wird für den Fall des Übergangs von einem Teilnetz auf ein anderes ein Zuschlag zur Weglänge erhoben, der damit nicht nur die Länge, sondern auch den Verlauf des kürzeste...... hiện toàn bộ
Optimal control of processes governed by partial differential equations part II: Vibrations
Unternehmensforschung - Tập 26 - Trang 63-86 - 1982
W. Krabs
This paper is concerned with damping of vibrations of one-dimensional media by distributed or boundary control. Given an initial state of vibration at the timet=0, the problem is considered to find a control along the medium or on its boundary by which the initial state is transferred to the position of rest at some given timeT>0. At first the problem of null-controllability is studied where the c...... hiện toàn bộ
Quadratic assignment problems on series-parallel digraphs
Unternehmensforschung - Tập 30 - Trang A161-A173 - 1986
F. Rendl
Christofides has shown that the quadratic assignment problem (QAP) on isomorphic trees is solvable in polynomial time by dynamic programming. We generalize the approach to minimal series-parallel digraphs and show that this problem is equivalent to the general QAP, thus NP-hard. However the restriction to the subclass of series-parallel digraphs not containing bipartite subgraphs again is solvable...... hiện toàn bộ
Book reviews
Unternehmensforschung - Tập 45 - Trang 303-307 - 1997
E. Schaich, H. Volger, Fredi Tröltzsch
Lineare kontrollprobleme
Unternehmensforschung - Tập 14 - Trang 263-275 - 1970
M. Feilmeier, P. Gessner, H. J. Wacker
Es wird eine große Klasse von linearen Kontrollproblemen unter einem einheitlichen Gesichtspunkt betrachtet. Wir geben hierfür ein allgemeines Lösungsprinzip an. Wichtige Spezialfälle werden näher erläutert und die resultierenden Rechenvorschriften angegeben.
Looking for appropriate qualification conditions for subdifferential formulae and dual representations for convex risk measures
Unternehmensforschung - Tập 74 Số 2 - Trang 191-215 - 2011
Radu Ioan Boţ, Alina-Ramona Frătean
Heuristics for short route job shop scheduling problems
Unternehmensforschung - Tập 48 - Trang 359-375 - 1998
Inna G. Drobouchevitch, Vitaly A. Strusevich
We consider two “minimum”NP-hard job shop scheduling problems to minimize the makespan. In one of the problems every job has to be processed on at most two out of three available machines. In the other problem there are two machines, and a job may visit one of the machines twice. For each problem, we define a class of heuristic schedules in which certain subsets of operations are kept as blocks o...... hiện toàn bộ
A review of multi-component maintenance models with economic dependence
Unternehmensforschung - Tập 45 - Trang 411-435 - 1997
Rommert Dekker, Ralph E. Wildeman, Frank A. van der Duyn Schouten
In this paper we review the literature on multi-component maintenance models with economic dependence. The emphasis is on papers that appeared after 1991, but there is an overlap with Section 2 of the most recent review paper by Cho and Parlar (1991). We distinguish between stationary models, where a long-term stable situation is assumed, and dynamic models, which can take information into account...... hiện toàn bộ
A numerical approach to solve consumption-portfolio problems with predictability in income, stock prices, and house prices
Unternehmensforschung - Tập 93 - Trang 33-81 - 2020
Farina Weiss
In this paper, I establish a numerical method to solve a generic consumption-portfolio choice problem with predictability in stock prices, house prices, and labor income. I generalize the SAMS method introduced by Bick et al. (Manag Sci 59:485–503, 2013) to state-dependent modifiers. I set up artificial markets to derive closed-form solutions for my life-cycle problem and transform the resulting c...... hiện toàn bộ
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