4,850 research outputs found
Effects of a Trust Mechanism on Complex Adaptive Supply Networks: An Agent-Based Social Simulation Study
This paper models a supply network as a complex adaptive system (CAS), in which firms or agents interact with one another and adapt themselves. And it applies agent-based social simulation (ABSS), a research method of simulating social systems under the CAS paradigm, to observe emergent outcomes. The main purposes of this paper are to consider a social factor, trust, in modeling the agents\' behavioral decision-makings and, through the simulation studies, to examine the intermediate self-organizing processes and the resulting macro-level system behaviors. The simulations results reveal symmetrical trust levels between two trading agents, based on which the degree of trust relationship in each pair of trading agents as well as the resulting collaboration patterns in the entire supply network emerge. Also, it is shown that agents\' decision-making behavior based on the trust relationship can contribute to the reduction in the variability of inventory levels. This result can be explained by the fact that mutual trust relationship based on the past experiences of trading diminishes an agent\'s uncertainties about the trustworthiness of its trading partners and thereby tends to stabilize its inventory levels.Complex Adaptive System, Agent-Based Social Simulation, Supply Network, Trust
Uppers to zero and semistar operations in polynomial rings
Given a stable semistar operation of finite type on an integral
domain , we show that it is possible to define in a canonical way a stable
semistar operation of finite type on the polynomial ring , such
that is a -quasi-Pr\"ufer domain if and only if each upper to zero
in is a quasi--maximal ideal. This result completes the
investigation initiated by Houston-Malik-Mott \cite[Section 2]{hmm} in the star
operation setting. Moreover, we show that is a Pr\"ufer
-multiplication (resp., a -Noetherian; a -Dedekind) domain
if and only if is a Pr\"ufer -multiplication (resp., a
-Noetherian; a -Dedekind) domain. As an application of the
techniques introduced here, we obtain a new interpretation of the
Gabriel-Popescu localizing systems of finite type on an integral domain
(Problem 45 of \cite{cg}), in terms of multiplicatively closed sets of the
polynomial ring
An overring-theoretic approach to polynomial extensions of star and semistar operations
Call a semistar operation on the polynomial domain an extension
(respectively, a strict extension) of a semistar operation defined on
an integral domain , with quotient field , if (respectively, ) for all
nonzero -submodules of . In this paper, we study the general
properties of the above defined extensions and link our work with earlier
efforts, centered on the stable semistar operation case, at defining semistar
operations on that are "canonical" extensions (or, "canonical" strict
extensions) of semistar operations on
The Sharp Log-Sobolev Inequality on a Compact Interval
We provide a proof of the sharp log-Sobolev inequality on a compact interval
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