Results 121 to 130 of about 849,237 (330)

actuar: An R Package for Actuarial Science

open access: yesJournal of Statistical Software, 2008
actuar is a package providing additional Actuarial Science functionality to the R statistical system. The project was launched in 2005 and the package is available on the Comprehensive R Archive Network since February 2006.
Christophe Dutang   +2 more
doaj  

Wading through black jade in Marianne Moore’s sunken cathedral: The modernist sea poem as a Deleuzian fold

open access: yesStudia Anglica Posnaniensia, 2015
The study is a close reading of Moore’s poem “The Fish” (1918) through the conceptual lens of Gilles Deleuze’s trope of the fold, as explained in his influential 1988 study of Leibniz, The Fold: Leibniz and the Baroque. The purpose is to explore Moore’s (
Ambroży Paulina
doaj   +1 more source

Maximizing Dividends without Bankruptcy [PDF]

open access: yes, 2017
Consider the classical compound Poisson model of risk theory, in which dividends are paid to the shareholders according to a barrier strategy. Let b* be the level of the barrier that maximizes the expectation of the discounted dividends until ruin.
Gerber, Hans U.   +2 more
core  

Ruin problem for Brownian motion risk model with interest rate and tax payment [PDF]

open access: yesarXiv, 2018
Let $\{B(t), t\ge 0\}$ be a Brownian motion. Consider the Brownian motion risk model with interest rate collection and tax payment defined by \begin{align}\label{Rudef} \widetilde{U}_\gamma^\delta(t)=\widetilde{X}^\delta(t)-\gamma\sup_{s\in[0,t]} \left(\widetilde{X}^\delta(s)e^{\delta(t-s)}-ue^{\delta(t-s)}\right),t\ge0, \end{align} with $$\widetilde{X}
arxiv  

3D Nano‐architected Polymer Shell Enables Reconfigurable Stabilized Blue Phase Soft Crystals

open access: yesAdvanced Functional Materials, EarlyView.
Spherical polymer shells featuring nanostructure of blue phase (BP) disclinations form via in situ photo‐polymerization within BP liquid crystals, providing controlled anchoring for BP nucleation and growth at room temperature and beyond. This architected confinement enhances BP thermal stability over a broad temperature range while enabling dynamic ...
Sepideh Norouzi   +8 more
wiley   +1 more source

Differentiation of some functionals of risk processes. [PDF]

open access: yes
For general risk processes, the expected time-integrated negative part of the process on a fixed time interval is introduced and studied. Differentiation theorems are stated and proved.
Stéphane Loisel
core  

Quantum Emitters in Hexagonal Boron Nitride: Principles, Engineering and Applications

open access: yesAdvanced Functional Materials, EarlyView.
Quantum emitters in hexagonal boron nitride have emerged as a promising candidate for quantum information science. This review examines the fundamentals of these quantum emitters, including their level structures, defect engineering, and their possible chemical structures.
Thi Ngoc Anh Mai   +8 more
wiley   +1 more source

Nonlinear dynamics and sustainable development of industrial enterprises within the framework of synergetic paradigm

open access: yesSHS Web of Conferences, 2016
The paper considers development of industrial complexes in the context of synergetic paradigm. Contradictions and dynamism of the world and national economies have become the source of incredible changes interfering the work of industrial complexes ...
Chuprov Sergey
doaj   +1 more source

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