Results 21 to 30 of about 8,686,349 (242)
Perrin numbers and distinct repdigits [PDF]
, 2020 We determine all Perrin numbers that are concatenations of two repdigits.
Mahadi Ddamulira, Toboka Chalebgwa
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Perrin numbers that are concatenations of two repdigits
Arabian Journal of Mathematics, 2022 AbstractLet $$ (P_n)_{n\ge 0}$$ ( P n ) n ≥ 0
Herbert Batte +2 more
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Padovan and Perrin numbers as products of two generalized Lucas numbers
Archivum Mathematicum, 2023 Let \(P_m\) and \(E_m\) be the \(m\)th Padovan and Perrin numbers, respectively. Let \(r,s\in \mathbb{Z}\) with \(r\ge 1\) and \(s\in\{-1,1\}\), and let \(\{U_n\}_{n\ge 0}\) be the generalized Lucas sequence given by \[U_0=0,\quad U_1=1\quad\mbox{and}\quad U_{n+2}=rU_{n+1}+sU_n.\] In the paper under review, the authors give effective bounds for the ...
Adédji, Kouèssi Norbert +2 more
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Matrix Sequences in terms of Padovan and Perrin Numbers [PDF]
Journal of Applied Mathematics, 2013 The first main idea of this paper is to develop thematrix sequencesthat represent Padovan and Perrin numbers. Then, by taking into account matrix properties of these new matrix sequences, some behaviours of Padovan and Perrin numbers will be investigated.
Nazmiye Yilmaz, Necati Taskara
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Biological Procedures Online, 2009 An important part of characterizing any protein molecule is to determine its size and shape. Sedimentation and gel filtration are hydrodynamic techniques that can be used for this medium resolution structural analysis.
Erickson Harold
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Common terms of k-Pell numbers and Padovan or Perrin numbers
Arabian Journal of Mathematics, 2022 AbstractLet $$k\ge 2$$ k ≥ 2 . A generalization of the well-known Pell sequence is the k-Pell sequence. For this sequence, the first k terms are $$0,\ldots ,0,1$$ 0 ,
Benedict Vasco Normenyo +2 more
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Perrin numbers that are concatenations of two distinct repdigits [PDF]
, 2021 Let $ (P_n)_{n\ge 0}$ be the sequence of Perrin numbers defined by ternary relation $ P_0=3 $, $ P_1=0 $, $ P_2=2 $, and $ P_{n+3}=P_{n+1}+P_n $ for all $ n\ge 0 $. In this paper, we use Baker's theory for nonzero linear forms in logarithms of algebraic numbers and the reduction procedure involving the theory of continued fractions, to explicitly ...
Herbert Batte +2 more
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Electron migration in DNA matrix: an electron transfer reaction
Eclética Química, 2018 This paper brings an active and provocative area of current research. It describes the investigation of electron transfer (ET) chemistry in general and ET reactions results in DNA in particular. Two DNA intercalating molecules were used: Ethidium Bromide
Cecília Dominical POY +1 more
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Exact Determinants of Some Special Circulant Matrices Involving Four Kinds of Famous Numbers
Abstract and Applied Analysis, 2014 Circulant matrix family is used for modeling many problems arising in solving various differential equations. The RSFPLR circulant matrices and RSLPFL circulant matrices are two special circulant matrices.
Xiaoyu Jiang, Kicheon Hong
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Creep damage analysis of simulated-HAZ notched bar specimens of modified 9Cr-1Mo steel
Mechanical Engineering Journal, 2017 From the standpoint of evaluating Type IV creep damage in the fine-grained heat affected zones (FGHAZ) of welded joints, an analysis method combining continuum damage mechanics (CDM) and a cavity nucleation model is proposed and applied to the creep ...
Takashi HONDA +5 more
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