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370 Result(s)
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Article
On steiner ratio conjectures
LetM be a metric space andP a finite set of points inM. The Steiner ratio inM is defined to beρ(M)=inf{L s(P)/L m(P) |P ⊂M}, whereL s(P) andL m(P) are the lengths of the Steiner minimal tree and the minimal spann...
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Chapter
Eine Klassifikation von Authentifikationsmodellen
In diesem Papier wird eine Klassifikation von Authentifikationsmodellen bezüglich der Abfolge des Nachrichtenaustausches vorgestellt. Die aus der Literatur bekannten Modelle von Neeham und Schroeder, Denning u...
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Chapter
Selbstzertifizierende öffentliche Schlüssel
In diesem Beitrag werden die Eigenschaften selbstzertifizierender Schlüssel im Vergleich zu zertifikatsbasierten Schlüsseln diskutiert. Danach erfolgt eine Übersicht über bekannte Protokolle zur Realisierung s...
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Book
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Chapter
Discrete Time Algorithms
The development of algorithms for the computation of projected dynamical systems is a topic equal in importance to that of the exploration of qualitative questions of existence, uniqueness, and stability.
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Chapter
Fixed Demand Traffic Equilibrium
Fixed demand traffic network equilibrium problems, in contrast to elastic demand traffic network equilibrium problems, which were the topic of Chapter 7, assume that there is a fixed and known travel demand as...
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Chapter
Introduction and Overview
Competitive phenomena in diverse disciplines are often characterized by the problem-specific equilibrium state. For example, in economics one encounters the problem in which firms are involved in the productio...
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Chapter
Stability Analysis
Stability of a system is defined as the ability of the system to maintain or restore its equilibrium when acted upon by forces tending to displace it. Hence, the study and understanding of equilibrium problems...
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Chapter
Oligopolistic Market Equilibrium
The oligopoly problem, which consists of a finite number of firms, involved in the production of a homogeneous commodity in a noncooperative manner, is one of the classical problems in economics, dating to Courno...
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Chapter
Elastic Demand Traffic Equilibrium
Congested urban transportation networks represent complex systems in which users interact so as to determine their cost-minimizing routes of travel between their points of origin and their destinations. The co...
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Chapter
Projected Dynamical Systems
Many systems in the modern world involve interacting agents competing for scarce resources and in such problems the concept of equilibrium plays a central role. Examples of scarce resources include: many natur...
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Chapter
Spatial Price Equilibrium
The perfectly competitive spatial price equilibrium models of Samuelson (1952) and Takayama and Judge (1971) have provided the basic framework for the study of a variety of applications in the fields of energy...
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Article
Competitive Tendering Strategies in the Bus Industry
School bus services within the UK are subsidised by the local Passenger Transport Executive and bus operators tender for the contracts, with the lowest price normally winning. Analysis of the bids in one distr...
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Chapter and Conference Paper
Massively Parallel Computation of Dynamic Traffic Networks Modeled as Projected Dynamical Systems
In this paper we consider the solution of a dynamic traffic network model with elastic demands modeled as a projected dynamical system in which the demand functions are assumed to be given. The proposed discre...
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Chapter
Network Equilibria and Disequilibria
Many complex systems in which agents compete for scarce resources on a network, either a physical one, as in the case of congested urban transportation systems, or an abstract one, as in the case of certain ec...
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Article
Performances of DPSK and FSK CDMA systems with complex signature sequences
This paper investigates the performance of direct‐sequence code‐division multiple‐access (CDMA) communication systems in Gaussian noise channels using binary and M‐ary noncoherent signaling schemes with complex s...
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Article
Analyzing Ordinal Data for Group Representation
With n individuals ranking m objects, the exhaustive comparison approach, proposed in this paper, produces a list of order vectors sorted by the relative number of concordant pairs. The exhaustive comparison appr...
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Article
Parallel Computation of Invariant Measures
Let S:[0,1]→[0,1] be a nonsingular transformation and let P:L 1(0,1)→L 1(0,1) be the corresponding Frobenius–Perron operator. In this paper we propose a parallel algorithm for computing a fixed density of P, usin...
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Article
China's Labour-Management System Reforms: Breaking the ‘Three Old Irons’ (1978–1999)
This article systematically examines the fundamental changes that have taken place in China's labour-management system since China embarked on its economic reforms in 1978. The system was, from the 1950s onwar...
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Article
A closed queuing maintenance network for automated manufacturing systems
This paper models an unreliable automated manufacturing system (AMS) by a closed queuing network. The AMS consists of a multi-stage network of automated work stations linked by a computer. A closed queuing alg...
