Results 21 to 30 of about 1,425,698 (265)

A Review of First-Passage Theory for the Segerdahl-Tichy Risk Process and Open Problems

open access: yesRisks, 2019
The Segerdahl-Tichy Process, characterized by exponential claims and state dependent drift, has drawn a considerable amount of interest, due to its economic interest (it is the simplest risk process which takes into account the effect of interest rates).
Florin Avram, Jose-Luis Perez-Garmendia
doaj   +1 more source

Factorial Structure of the EOCL-1 Scale to Assess Executive Functions

open access: yesFrontiers in Psychology, 2021
The process of assessing executive functions through behavioral observation scales is still under theoretical and empirical construction. This article reports on the analysis of the factorial structure of the EOCL-1 scale that assesses executive ...
Carlos Ramos-Galarza   +4 more
doaj   +1 more source

Fluctuation Theory for Upwards Skip-Free Lévy Chains

open access: yesRisks, 2018
A fluctuation theory and, in particular, a theory of scale functions is developed for upwards skip-free Lévy chains, i.e., for right-continuous random walks embedded into continuous time as compound Poisson processes.
Matija Vidmar
doaj   +1 more source

Surface Family with Bertrand Curves as Joint Asymptotic Curves in 3D Galilean Space

open access: yesMathematics, 2023
The primary objective of this work is to discuss a surface family with the similarity of Bertrand curves in 3D Galilean space. Subsequently, by applying the Serret–Frenet frame, we estimate the sufficient and necessary statuses of a surface family with ...
Awatif Al-Jedani, Rashad A. Abdel-Baky
doaj   +1 more source

Optimal Scale Selection in Random Multi-scale Ordered Decision Systems [PDF]

open access: yesJisuanji kexue, 2022
Aiming at the knowledge acquisition problem of multi-scale ordered information system obtained from random experiments,concepts of random multi-scale ordered information systems and dominance-equivalence-relations-based random multi-scale ordered ...
FANG Lian-hua, LIN Yu-mei, WU Wei-zhi
doaj   +1 more source

Scale-Invariant Divergences for Density Functions

open access: yesEntropy, 2014
Divergence is a discrepancy measure between two objects, such as functions, vectors, matrices, and so forth. In particular, divergences defined on probability distributions are widely employed in probabilistic forecasting.
Takafumi Kanamori
doaj   +1 more source

Surface Pencil Couple with Bertrand Couple as Joint Principal Curves in Galilean 3-Space

open access: yesAxioms, 2023
A principal curve on a surface plays a paramount role in reasonable implementations. A curve on a surface is a principal curve if its tangents are principal directions.
Nadia Alluhaibi, Rashad A. Abdel-Baky
doaj   +1 more source

New discrete inequalities of Hermite–Hadamard type for convex functions

open access: yesAdvances in Difference Equations, 2021
We introduce new time scales on Z $\mathbb{Z}$ . Based on this, we investigate the discrete inequality of Hermite–Hadamard type for discrete convex functions.
Pshtiwan Othman Mohammed   +3 more
doaj   +1 more source

Development and Validation of a Two-Dimensional Scale to Measure Family Functions [PDF]

open access: yesInternational Journal of School Health, 2019
Background: Family has a great impact on the formation of people's expectations and beliefs, and its role in the health, well-being, and promotion of various skills in children is very prominent.
Abbas Akbari   +3 more
doaj   +1 more source

Surface Family Pair with Bertrand Pair as Mutual Curvature Lines in Three-Dimensional Lie Group

open access: yesAxioms, 2023
This paper is on deducing the necessary and sufficient conditions of a surface family pair with a Bertrand pair as mutual curvature lines in three-dimensional Lie group G.
Awatif Al-Jedani, Rashad A. Abdel-Baky
doaj   +1 more source

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