Results 81 to 90 of about 34,757 (249)
Extended r-central Bell polynopmials with umbral calculus viewpoint
Advances in Difference Equations, 2019 Recently, extended r-central factorial numbers of the second kind and extended r-central Bell polynomials were introduced and various results of them were investigated.
Lee-Chae Jang +3 more
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Bell polynomials and differential equations of Freud-type polynomials
Mathematical and Computer Modelling, 2002 By using elementary properties of the Bell polynomials, and the classical factorization method, we derive in a simple way the differential equations satisfied by a class of Freud-type polynomials.
A. Bernardini, Paolo Ricci
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On Bell based Appell polynomials
Turkish Journal of Mathematics, 2023 Recently, several Bell based polynomials such as Bernoulli, Euler, Genocchi and Apostol versions were defined and investigated. The main aim of this paper is to introduce the general family of Bell based Appell polynomials, which includes many new members in addition to the existing ones, and to investigate their properties including determinantal ...
Ozarslan, Mehmet Ali +2 more
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An age–period–cohort–interaction analysis of meth/amphetamine‐related deaths in Australia, 2001–2020
Addiction, EarlyView.Abstract Background and Aims The number of meth/amphetamine related deaths in Australia has quadrupled in the last 20 years, primarily due to drug toxicity and suicide among individuals in their 30s and 40s. Previous analysis of Australian meth/amphetamine‐related deaths covered limited timeframes and causes, and there has been no exploration of the ...
Oisin Stronach +3 more
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On a representation of time space-harmonic polynomials via symbolic L\'evy processes [PDF]
, 2013 In this paper, we review the theory of time space-harmonic polynomials developed by using a symbolic device known in the literature as the classical umbral calculus. The advantage of this symbolic tool is twofold. First a moment representation is allowed
Di Nardo, E.
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American Journal of Political Science, EarlyView.Abstract How can defense alliances reap the efficiency gains of working together when coordination and opportunism costs are high? Although specializing as part of a collective comes with economic and functional benefits, states must bargain over the distribution of those gains and ensure the costs of collective action are minimized.
J. Andrés Gannon
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Abstract and Applied Analysis, 2014 The bilinear form, bilinear Bäcklund transformation, and Lax pair of a (2 + 1)-dimensional variable-coefficient Caudrey-Dodd-Gibbon-Kotera-Sawada equation are derived through Bell polynomials. The integrable constraint conditions on variable coefficients
Wen-guang Cheng, Biao Li, Yong Chen
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Unequal by Design: Ministerial Policy Roles in the Canadian Executive, 2015‐2021
Canadian Public Administration, EarlyView.Abstract Cabinet ministers are formally equal but unequal in practice: for example, ministers may differ significantly in how they undertake policy activity. I use federal mandate letter data from 2015 to 2021 to explore variation in and correlates of ministerial policy activity.
Kenny William Ie
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Journal of Approximation TheoryIn this paper, generalized Bell polynomials $(\Be_n^ϕ)_n$ associated to a sequence of real numbers $ϕ=(ϕ_i)_{i=1}^\infty$ are introduced. Bell polynomials correspond to $ϕ_i=0$, $i\ge 1$. We prove that when $ϕ_i\ge 0$, $i\ge 1$: (a) the zeros of the generalized Bell polynomial $\Be_n^ϕ$ are simple, real and non positive; (b) the zeros of $\Be_{n+1}^ϕ ...
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Clinical Genetics, EarlyView.We present a clinical and molecular characterization of 16 Brazilian individuals with Xia–Gibbs syndrome, identifying 12 novel AHDC1 variants and four phenotypes not previously associated. Our findings support existing genotype–phenotype associations and suggest a new relation, expanding the known phenotypic and genetic spectrum of the syndrome ...
Maísa Ganz Sanchez Sennes +23 more
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