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We consider real-valued functions ƒ(x) which are defined for all sufficiently large real numbers x. In discussing the behaviour of such functions as x → + ∞, it is useful to compare ƒ with the functions of some “comparison scale”. The early work in this field was due to Du Bois-Reymond (see, for example, (2), (3)).
Erdős, Pál +2 more
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The Theory of Scale Functions for Spectrally Negative Lévy Processes [PDF]
The purpose of this review article is to give an up to date account of the theory and applications of scale functions for spectrally negative Levy processes.
A. Kuznetsov, A. Kyprianou, V. Rivero
semanticscholar +1 more source
Applying functional programming principles to distributed computing projects.
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The W,Z/ν,δ Paradigm for the First Passage of Strong Markov Processes without Positive Jumps
As is well-known, the benefit of restricting Lévy processes without positive jumps is the “ W , Z scale functions paradigm„, by which the knowledge of the scale functions W , Z extends immediately to other risk control ...
Florin Avram +2 more
doaj +1 more source
On Central Branch/Reinsurance Risk Networks: Exact Results and Heuristics
Modeling the interactions between a reinsurer and several insurers, or between a central management branch (CB) and several subsidiary business branches, or between a coalition and its members, are fascinating problems, which suggest many interesting ...
Florin Avram, Sooie-Hoe Loke
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Optimal Bail-Out Dividend Problem with Transaction Cost and Capital Injection Constraint
We consider the optimal bail-out dividend problem with fixed transaction cost for a Lévy risk model with a constraint on the expected present value of injected capital.
Mauricio Junca +2 more
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CSPOT: portable, multi-scale functions-as-a-service for IoT
In this paper, we present CSPOT, a distributed runtime system implementing a functions-as-service (FaaS) programming model for the "Internet of Things" (IoT). With FaaS, developers express arbitrary computations as simple functions that are automatically
R. Wolski +4 more
semanticscholar +1 more source
Convexity and Smoothness of Scale Functions and de Finetti’s Control Problem [PDF]
We continue the recent work of Avram et al. (Ann. Appl. Probab. 17:156–180, 2007) and Loeffen (Ann. Appl. Probab., 2007) by showing that whenever the Lévy measure of a spectrally negative Lévy process has a density which is log-convex then the solution ...
A. Kyprianou, V. Rivero, R. Song
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Phase-type fitting of scale functions for spectrally negative Lévy processes [PDF]
We study the scale function of the spectrally negative phase-type Levy process. Its scale function admits an analytical expression and so do a number of its fluctuation identities. Motivated by the fact that the class of phase-type distributions is dense
Masahiko Egami, K. Yamazaki
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Mixed Periodic-Classical Barrier Strategies for Lévy Risk Processes
Given a spectrally-negative Lévy process and independent Poisson observation times, we consider a periodic barrier strategy that pushes the process down to a certain level whenever the observed value is above it.
José-Luis Pérez, Kazutoshi Yamazaki
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