Results 81 to 90 of about 2,433,680 (345)
On the geometry behind a recurrent relation [PDF]
Carpathian Journal of Mathematics, 2015 We consider a certain linear recursive relation with integer parameters and study some of its algebraic and geometric properties, with the purpose of estimating the number of chains of valences in the Farey series.
Alexandru Zaharescu, Cristian Cobeli
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, 2016 In this paper, a fourth-order partial divided-difference equation on quadratic lattices with polynomial coefficients satisfied by bivariate Racah polynomials is presented.
Area, I. +4 more
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Journal of the Association for Information Science and Technology, EarlyView.Abstract This ethnographic study explores vehicle residents' information practices in the United States (US). Vehicle residents are people whose primary means of housing is a vehicle. This work builds on previous research encompassing transitions and fractured (information) landscapes. Using fractured information landscapes as the theoretical framework,
Kaitlin E. Montague
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On a Class of Recurrence Relations
Communications, Faculty Of Science, University of Ankara Series A1Mathematics and Statistics, 1949 et F (z) = z? £ cnz",n— 0where the coefficients are determined by a recurrence reiationCn-- S (C 0> C 1 > • • • » c n~l). (1)in which g is an algebraic polynomial of degree m in the va- riables cr , that is, it is the sum of homogeneous polynomials go, gm- Each gr is of the formgr ’ f c p1 c />2 • • • c prP l> P z ...
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Biofuels, Bioproducts and Biorefining, EarlyView.Abstract Biogas purification technologies facilitate the production of value‐added products such as biomethane and industrial chemicals. This review was based on the assumption that biogas purification is underrepresented in the literature despite its significant potential for clean energy and greenhouse gas mitigation, warranting a comprehensive ...
Priscila Marchiori +6 more
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Motzkin Paths, Motzkin Polynomials and Recurrence Relations
Electronic Journal of Combinatorics, 2015 We consider the Motzkin paths which are simple combinatorial objects appearing in many contexts. They are counted by the Motzkin numbers, related to the well known Catalan numbers.
R. Oste, J. Jeugt
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British Educational Research Journal, EarlyView.Abstract This study recognised that there is currently limited understanding of the extent and nature of ability grouping practices in subject areas other than mathematics and English in primary schools. Using survey methods, this research sought to generate data of sufficient scale to extend understanding of the use of ability grouping practices in ...
Shaun D. Wilkinson, Dawn Penney
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On a Family of 2-Variable Orthogonal Krawtchouk Polynomials
Symmetry, Integrability and Geometry: Methods and Applications, 2010 We give a hypergeometric proof involving a family of 2-variable Krawtchouk polynomials that were obtained earlier by Hoare and Rahman [SIGMA 4 (2008), 089, 18 pages] as a limit of the 9−j symbols of quantum angular momentum theory, and shown to be ...
F. Alberto Grünbaum, Mizan Rahman
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Some identities for generalized Fibonacci and Lucas numbers
AKCE International Journal of Graphs and Combinatorics, 2020 In this paper we study one parameter generalization of the Fibonacci numbers, Lucas numbers which generalizes the Jacobsthal numbers, Jacobsthal–Lucas numbers simultaneously. We present some their properties and interpretations also in graphs.
Anetta Szynal-Liana +2 more
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Recurrence relations and fast algorithms
Applied and Computational Harmonic Analysis, 2010 We construct fast algorithms for evaluating transforms associated with families of functions which satisfy recurrence relations. These include algorithms both for computing the coefficients in linear combinations of the functions, given the values of these linear combinations at certain points, and, vice versa, for evaluating such linear combinations ...
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