Results 81 to 90 of about 2,081 (228)

A Conversation With David Bellhouse

open access: yesInternational Statistical Review, EarlyView.
Summary David Richard Bellhouse was born in Winnipeg, Manitoba, on 19 July 1948. He studied actuarial mathematics and statistics at the University of Manitoba (BA, 1970; MA, 1972) and completed his PhD at the University of Waterloo, Ontario, in 1975. After being an Assistant Professor for 1 year at his alma mater, he joined the University of Western ...
Christian Genest
wiley   +1 more source

Some Identities between the Extended -Bernstein Polynomials with Weight and -Bernoulli Polynomials with Weight (,)

open access: yesJournal of Applied Mathematics, 2013
Using bosonic -adic -integral on , we give some interesting relationships between -Bernoulli numbers with weight (,) and -Bernstein polynomials with weight .
H. Y. Lee, C. S. Ryoo
doaj   +1 more source

Generating Functions for New Families of Combinatorial Numbers and Polynomials: Approach to Poisson–Charlier Polynomials and Probability Distribution Function

open access: yesAxioms, 2019
The aim of this paper is to construct generating functions for new families of combinatorial numbers and polynomials. By using these generating functions with their functional and differential equations, we not only investigate properties of these new ...
Irem Kucukoglu   +2 more
doaj   +1 more source

A joint model of cost and churn for the insurance industry

open access: yesJournal of Risk and Insurance, EarlyView.
Abstract In insurance markets, claim costs are highly variable, heavy‐tailed, and difficult to predict. At the same time, policyholder retention and lapse behavior (customer churn) are critical determinants of long‐term profitability and solvency. Most existing models in the literature treat claim costs and lapses as independent, overlooking potential ...
Yumo Dong   +4 more
wiley   +1 more source

On Two Bivariate Kinds of Poly-Bernoulli and Poly-Genocchi Polynomials

open access: yesMathematics, 2020
In this paper, we introduce two bivariate kinds of poly-Bernoulli and poly-Genocchi polynomials and study their basic properties. Finally, we consider some relationships for Stirling numbers of the second kind related to bivariate kinds of poly-Bernoulli
Cheon Seoung Ryoo, Waseem A. Khan
doaj   +1 more source

Scalable Approximation of the Transformation‐Free Linear Simplicial–Simplicial Regression via Constrained Iterative Reweighted Least Squares

open access: yesStatistical Analysis and Data Mining: An ASA Data Science Journal, Volume 19, Issue 4, August 2026.
ABSTRACT Simplicial–simplicial regression concerns statistical modeling scenarios in which both the predictors and the responses contain vectors constrained to lie on the simplex. Fiksel et al. introduced a transformation‐free linear regression framework for this setting, wherein the regression coefficients are estimated by minimizing the Kullback ...
Michail Tsagris, Omar Alzeley
wiley   +1 more source

q-Bernoulli numbers and q-Bernoulli polynomials revisited

open access: yesAdvances in Difference Equations, 2011
This paper performs a further investigation on the q-Bernoulli numbers and q-Bernoulli polynomials given by Acikgöz et al. (Adv Differ Equ, Article ID 951764, 9, 2010), some incorrect properties are revised.
Kim Taekyun, Lee Byungje, Ryoo Cheon
doaj  

Symmetric identities for Carlitz’s q-Bernoulli numbers and polynomials

open access: yes, 2013
In this paper, a further investigation for the Carlitz’s q-Bernoulli numbers and q-Bernoulli polynomials is performed, and several symmetric identities for these numbers and polynomials are established by applying elementary methods and techniques.
Yuan He
semanticscholar   +1 more source

Niche Partitioning and Facilitative Coexistence of Two Sympatric Pheasants Across a Gradient of Human Disturbance

open access: yesEcology and Evolution, Volume 16, Issue 7, July 2026.
This study reveals that Hainan Peacock‐Pheasants and Silver Pheasants coexist through distinct temporal and spatial niche partitioning. However, human disturbance disrupts their positive association, as the sensitive Peacock‐Pheasant avoids high‐impact areas while the tolerant Silver Pheasant persists. Consequently, anthropogenic pressure renders their
Xiangxiang Lu   +4 more
wiley   +1 more source

On the Values of the Weighted 𝑞-Zeta and 𝐿-Functions

open access: yesDiscrete Dynamics in Nature and Society, 2011
Recently, the modified 𝑞-Bernoulli numbers and polynomials are introduced in (D. V. Dolgy et al., in press). These numbers are valuable to study the weighted 𝑞-zeta and 𝐿-functions.
T. Kim   +3 more
doaj   +1 more source

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