Results 1 to 10 of about 86,401 (169)

On Non-Tensor Product Bivariate Fractal Interpolation Surfaces on Rectangular Grids [PDF]

Mathematics, 2020
Some years ago, several authors tried to construct fractal surfaces which pass through a given set of data points. They used bivariable functions on rectangular grids, but the resulting surfaces failed to be continuous.
Vasileios Drakopoulos, Polychronis Manousopoulos   +1 more
doaj   +3 more sources

Ward identities and combinatorics of rainbow tensor models

Journal of High Energy Physics, 2017
We discuss the notion of renormalization group (RG) completion of non-Gaussian Lagrangians and its treatment within the framework of Bogoliubov-Zimmermann theory in application to the matrix and tensor models. With the example of the simplest non-trivial
H. Itoyama, A. Mironov, A. Morozov
doaj   +3 more sources

An S-type upper bound for the largest singular value of nonnegative rectangular tensors [PDF]

Open Mathematics, 2016
An S-type upper bound for the largest singular value of a nonnegative rectangular tensor is given by breaking N = {1, 2, … n} into disjoint subsets S and its complement. It is shown that the new upper bound is smaller than that provided by Yang and Yang (
Zhao Jianxing, Sang Caili
doaj   +4 more sources

Bound for the largest singular value of nonnegative rectangular tensors

Open Mathematics, 2016
In this paper, we give a new bound for the largest singular value of nonnegative rectangular tensors when m = n, which is tighter than the bound provided by Yang and Yang in “Singular values of nonnegative rectangular tensors”, Front. Math.
He Jun, Liu Yan-Min, Ke Hua, Tian Jun-Kang, Li Xiang   +4 more
doaj   +2 more sources

Gauge equivariant convolutional neural networks for diffusion MRI [PDF]

Scientific Reports
Diffusion MRI (dMRI) is an imaging technique widely used in neuroimaging research, where the signal carries directional information of underlying neuronal fibres based on the diffusivity of water molecules.
Uzair Hussain, Ali R. Khan
doaj   +2 more sources

Vibration Analysis of Rectangular Kirchhoff Nano-Plate using Modified Couple Stress Theory and Navier Solution Method [PDF]

International Journal of Advanced Design and Manufacturing Technology, 2021
In this study, the characteristics of rectangular Kirchhoff nano-plate vibrations are investigated using a modified couple stress theory. To consider the effects of small-scale, the modified couple stress theory proposed by Young (2002) is used as it has
Behzad Bayati Chaleshtori, Ali Hajiahmad, Seyed Saeid Mohtasebi   +2 more
doaj   +1 more source

The complex rupture evolution of the long and slow, tsunamigenic 2021 South Sandwich Islands earthquake [PDF]

Scientific Reports
On August 21, 2021, a large earthquake occurred in the South Sandwich subduction zone, and the associated tsunami was widely observed. To robustly analyse the detailed seismic source process of this long-source duration (over 200 s) event occurring in a ...
Ryo Yamaguchi, Yuji Yagi, Ryo Okuwaki, Bogdan Enescu   +3 more
doaj   +2 more sources

Bending and Vibration Analysis of a Mindlin Rectangular Nanoplate using Modified Couple Stress Theory and Navier's Solution [PDF]

International Journal of Advanced Design and Manufacturing Technology, 2022
In this paper, a Mindlin rectangular nanoplate model is developed for the bending and vibration analysis of a graphene nanoplate based on a modified couple stress theory.
Majid Eskandari Shahraki, Mahmoud Shariati, naser asiaban   +2 more
doaj   +1 more source

Structured Rectangular Tensors and Rectangular Tensor Complementarity Problems [PDF]

Mathematical Problems in Engineering, 2020
In this paper, some properties of structured rectangular tensors are presented, and the relationship among these structured rectangular tensors is also given. It is shown that all the V-singular values of rectangular P-tensors are positive. Some necessary and/or sufficient conditions for a rectangular tensor to be a rectangular P-tensor are also ...
Qingyu Zeng, Jun He, Yanmin Liu
openaire   +2 more sources

Structural-Missing Tensor Completion for Robust DOA Estimation with Sensor Failure

Applied Sciences, 2023
Array sensor failure poses a serious challenge to robust direction-of-arrival (DOA) estimation in complicated environments. Although existing matrix completion methods can successfully recover the damaged signals of an impaired sensor array, they cannot ...
Bin Li, Fei Cheng, Hang Zheng, Zhiguo Shi, Chengwei Zhou   +4 more
doaj   +1 more source