Results 61 to 70 of about 2,057 (213)
Families of Integral Cographs within a Triangular Array
Special Matrices, 2020 The determinant Hosoya triangle, is a triangular array where the entries are the determinants of two-by-two Fibonacci matrices. The determinant Hosoya triangle mod 2 gives rise to three infinite families of graphs, that are formed by complete product ...
Ching Hsin-Yun +2 more
doaj +1 more source
Restricted Permutations, Fibonacci Numbers, and k-generalized Fibonacci Numbers
, 2002 A permutation $ \in S_n$ is said to {\it avoid} a permutation $ \in S_k$ whenever $ $ contains no subsequence with all of the same pairwise comparisons as $ $. For any set $R$ of permutations, we write $S_n(R)$ to denote the set of permutations in $S_n$ which avoid every permutation in $R$. In 1985 Simion and Schmidt showed that $|S_n(132, 213, 123)
Egge, Eric S., Mansour, Toufik
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Magnetic Resonance in Medicine, Volume 93, Issue 6, Page 2311-2330, June 2025.Abstract Purpose To enhance SNR per unit time of diffusion MRI to enable high spatial resolution and extensive q‐sampling in a feasible scan time on clinical scanners. Methods 3D multi‐shot enhanced recovery motion‐insensitive diffusion (MERMAID) consists of a whole brain nonselective 3D multi‐shot spin‐echo sequence with an inversion pulse immediately
Sajjad Feizollah, Christine L. Tardif
wiley +1 more source
Spectral properties of two coupled Fibonacci chains
New Journal of Physics, 2023 The Fibonacci chain, i.e. a tight-binding model where couplings and/or on-site potentials can take only two different values distributed according to the Fibonacci word, is a classical example of a one-dimensional quasicrystal.
Anouar Moustaj +4 more
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ISNet: Decomposed Dynamic Spatio‐Temporal Neural Network for Ionospheric Scintillation Forecasts
Space Weather, Volume 23, Issue 6, June 2025.Abstract Accurate prediction of ionospheric scintillation is essential for ensuring the reliability of spaceborne and ground‐based radio wave technology infrastructures, including but not limited to navigation and communication systems. In this study, we propose a deep learning‐based Ionospheric Scintillation Network (ISNet), which can predict the ...
Zhixu Gao +8 more
wiley +1 more source
Cubic binomial Fibonacci sums [PDF]
Electronic Journal of Mathematics, 2021 Kunle Adegoke +2 more
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Journal of Applied Crystallography, Volume 58, Issue 3, Page 1034-1049, June 2025.Predicted protein structures containing flexible regions, or solved structural units linked by disordered segments, will not have a unique conformation in solution. Starting from a single structure, the SAXS‐A‐FOLD webserver can generate thousands of conformations using a Monte Carlo method.
Emre Brookes +3 more
wiley +1 more source
High‐resolution X‐ray scanning with a diffuse Huffman‐patterned probe to reduce radiation damage
Journal of Synchrotron Radiation, Volume 32, Issue 3, Page 700-717, May 2025.This paper introduces high‐resolution imaging using diffuse probes, which allow for lower energy deposition per unit area per unit time, by encoding Huffman‐like patterns onto them, enabling a tighter impulse response. The approach, demonstrated in X‐ray imaging, involves using specially fabricated masks to shape the probe and recover sharp object ...
Alaleh Aminzadeh +5 more
wiley +1 more source
Fibonacci numbers and orthogonal polynomials
Arab Journal of Mathematical Sciences, 2011 A note dated June 2007 has been added with some historical comments.
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Fast heuristics for the time‐constrained immobile server problem
International Transactions in Operational Research, Volume 32, Issue 3, Page 1282-1311, May 2025.Abstract We propose easy‐to‐implement heuristics for time‐constrained applications of a problem referred to in the literature as the facility location problem with immobile servers, stochastic demand, and congestion, the service system design problem, or the immobile server problem (ISP).
Adam Q. Colley, Eli V. Olinick
wiley +1 more source