Generalised divisor sums of binary forms over number fields [PDF]
Estimating averages of Dirichlet convolutions $1 \ast \chi$, for some real Dirichlet character $\chi$ of fixed modulus, over the sparse set of values of binary forms defined over $\mathbb{Z}$ has been the focus of extensive investigations in recent years,
Frei, Christopher, Sofos, Efthymios
core +2 more sources
Alternative formulations to compute the binary shape Euler number
The authors propose two equations based on the pixel geometry and connectivity properties, which can be used to compute, efficiently, the Euler number of a binary digital image with either thick or thin boundaries.
Juan Humberto Sossa Azuela +5 more
doaj +1 more source
Congruences for the Apéry numbers modulo p³ [PDF]
Let {Aₙ'} be the Apéry numbers given by Aₙ'=\Σⁿₖ₌ₒ$binom{n}{k}$²$binom{n+k}{k}$. For any prime p≡3 (mod 4) we show that A'_{(p-1)/2}≡p²/3$binom{(p-3)/2}{(p-3)/4}$² (mod p³). Let {tₙ} be given by t₀=1, t₁=5 and tₙ₊₁=(8n²+12n+5)tₙ-4n²(2n+1)²tₙ₋₁ (n≥1).
Zhi-Hong Sun
doaj +1 more source
Modeling the travel distances of debris flows and debris slides: quantifying hillside morphology [PDF]
A travel distance model for debris flows and slides is presented based on information collected in southeast British Columbia, Canada. The model incorporates a variable that represents terrain morphology by a single number, quantification made using a ...
Bogdan Strimbu
doaj +3 more sources
Complex Number Representation in RCBNS Form for Arithmetic Operations and Conversion of the Result into Standard Binary Form [PDF]
paper introduces a novel method for complex number representation. The proposed Redundant Complex Binary Number System (RCBNS) is developed by combining a Redundant Binary Number and a complex number in base (-1+j).
Hatim Zaini, R. G. Deshmukh
doaj
Correlation properties of binary pseudorandom sequence based on residue number system
It proposed to synthesize the stochastic code structures based on residue number system, which allows to form ensembles with acceptable correlation properties, cryptographic difficulty level of formed ensembles, depending on key, and with any length of ...
V. S. Litvinov, D. M. Bildziuk
doaj +1 more source
On trees, tanglegrams, and tangled chains [PDF]
Tanglegrams are a class of graphs arising in computer science and in biological research on cospeciation and coevolution. They are formed by identifying the leaves of two rooted binary trees. The embedding of the trees in the plane is irrelevant for this
Sara Billey +2 more
doaj +1 more source
Enumeration of Binary Trees and Universal Types [PDF]
Binary unlabeled ordered trees (further called binary trees) were studied at least since Euler, who enumerated them. The number of such trees with n nodes is now known as the Catalan number.
Charles Knessl, Wojciech Szpankowski
doaj +3 more sources
RepB C-terminus mutation of a pRi-repABC binary vector affects plasmid copy number in Agrobacterium and transgene copy number in plants. [PDF]
A native repABC replication origin from pRiA4b was previously reported as a single copy plasmid in Agrobacterium tumefaciens and can improve the production of transgenic plants with a single copy insertion of transgenes when it is used in binary vectors ...
Zarir Vaghchhipawala +7 more
doaj +1 more source
Simple binary segmentation frameworks for identifying variation in DNA copy number
Background Variation in DNA copy number, due to gains and losses of chromosome segments, is common. A first step for analyzing DNA copy number data is to identify amplified or deleted regions in individuals.
Yang Tae Young
doaj +1 more source

