Nonlinear beam dynamics is an important issue in accelerator systems. The Poincar e section map plays a basic role in characterizing and analyzing such a nonlinear system. Although many kinds of nonlinear beam dynamics experiments have been conducted, no direct measurement of a nonlinear map has been reported for an accelerator in normal operation mode. In this paper, we will show that it appea...

This paper considers Stackelberg solutions for decision making problems in hierarchical organizations under fuzzy random environments. Taking into account vagueness of judgments of decision makers, fuzzy goals are introduced into the formulated fuzzy random two-level linear programming problems. On the basis of the possibility and necessity measures that each objective function fulfills the cor...

Real options modeling, which extends the ability of option pricing models to evaluate real assets, can be used to evaluate risky projects because of its capacity to handle uncertainties. This research utilizes possibility theory to represent private risks of a project, which are not reflected in the market and hence are not fully evaluated by standard option pricing models. Using a transformati...

| The introduction of a notion of independence in possibility theory is a problem of long-standing interest. The deenitions that have up to now been given in the literature face some diiculties as far as interpretation is concerned. Also, there are inconsistencies between the deenition of independence of measurable sets and possibilistic variables. After a discussion of these deenitions and the...

In this article we propose that there are two universal properties for phonological stop assibilations, namely (i) assibilations cannot be triggered by /i/ unless they are also triggered by /j/, and (ii) voiced stops cannot undergo assibilations unless voiceless ones do. The article presents typological evidence from assibilations in over 30 languages supporting both (i) and (ii). It is argued ...

Invariantism proposed by [Braun, 2013] aims to maintain full identity of semantic content between all uses of ‘might’. I invoke well-known facts regarding diachronic change in meanings of modals to argue that invariantism commits us to implausible duplication of familiar processes of lexical semantic change on the level of “lexical pragmatics”, with no obvious payoff. [Braun, 2013] proposes an ...

We study the relation between possibility measures and the theory of imprecise probabilities. It is shown that a possibility measure is a coherent upper probability iff it is normal. We also prove that a possibility measure is the restriction to events of the natural extension of a special kind of upper probability, defined on a class of nested sets. Next, we go from upper probabilities to uppe...

A small number of the logically possible word order configurations account for a large proportion of actual human languages. To explain this distribution, typologists often invoke principles of human cognition which might make certain orders easier or harder to learn or use. We present a novel method for carrying out very large scale artificial language learning tasks over the internet, which a...