Results 21 to 30 of about 3,748 (154)
On the zeros of certain Sheffer sequences and their cognate sequences [PDF]
Given a Sheffer sequence of polynomials, we introduce the notion of an associated sequence called the cognate sequence. We study the relationship between the zeros of this pair of associated sequences and show that in case of an Appell sequence, as well as a more general family of Sheffer sequences, the zeros of the members of each sequence (for large ...
Gi‐Sang Cheon +2 more
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Certain results associated with hybrid relatives of the q-Sheffer sequences
The intended objective of this paper is to introduce a new class of the hybrid q-Sheffer polynomials by means of the generating function and series definition. The determinant definition and other striking properties of these polynomials are established. Certain results for the continuous q-Hermite-Appell polynomials are obtained.
Subuhi Khan, Tabinda Nahid
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Two characterizations of Sheffer-Dunkl sequences [PDF]
Sheffer polynomials can be characterized using different Stieltjes integrals. These families of polynomials have been recently extended to the Dunkl context. In this way some classical operators as the derivative operator or the difference operator are replaced as analogous operators in the Dunkl universe.
Alejandro Gil Asensi +1 more
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On multivariable Sheffer sequences
Let {Bn(x)}~=,, be a polynomial sequence which is simple, one where each B,(x) is of degree precisely 71.
James W.H. Brown
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Powers under umbral composition and degeneration for Sheffer sequences [PDF]
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Dae San Kim +3 more
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The algebra for formal series. II. Sheffer sequences
In this paper we continue the study of the algebra of formal series. We will develop some new results on special sequences and begin the study of Sheffer Sequences, discussing the important examples of Hermite, Laguerre and Bernoulli. The second section gives a very brief survey of parts of [I] as well as a new result which will be used in the sequel ...
Steven Roman
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Recurrence relations for the Sheffer sequences
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Sheng-Liang Yang
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Two characterizations of Sheffer-Dunkl sequences of polynomials [PDF]
Abstract Sheffer polynomials can be characterized using different Stieltjes integrals. These families of polynomials have been recently extended to the Dunkl context. In this way some classical operators as the derivative operator or the difference operator are replaced as analogous operators in the Dunkl universe.
Alejandro Gil Asensi +1 more
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A Riordan array approach to Apostol type-Sheffer sequences
In this article, the generalized Apostol type-Sheffer sequences are introduced and their properties including the quasi-monomiality, determinant form and series and conjugate representations are derived via Riordan array techniques. The generalized Apostol-Bernoulli, Apostol-Euler and Apostol- Genocchi-Sheffer sequences are considered as ...
Mumtaz Riyasat
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Winter Temperature Affects Fatty Acid Composition and Gene Expression, but Not Fat Content and Survival in a Northern Population of a Range-Expanding Spider. [PDF]
This study provides insight into the performance of a range‐expanding species and the physiological and molecular mechanisms underlying thermal tolerance at its expanding edge. ABSTRACT Species expand their geographic distribution when environmental conditions are favorable or when mutations arise that allow them to live in previously unfavorable ...
Ortiz-Movliav C +7 more
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