Results 31 to 40 of about 16,496,952 (144)

On Jacobsthal and Jacobsthal-Lucas Circulant Type Matrices [PDF]

, 2015
Circulant type matrices have become an important tool in solving fractional order differential equations. In this paper, we consider the circulant and left circulant and g-circulant matrices with the Jacobsthal and Jacobsthal-Lucas numbers.
Zhaolin Jiang, Yanpeng Gong, Yun Gao
core   +1 more source

Modified F‐tests for assessing tree radial growth under linear‐circular regression models with correlated errors: A comprehensive toolbox rooted in G. E. P. Box's theorems

Canadian Journal of Statistics, Volume 54, Issue 3, September 2026.
Abstract Annual tree growth is a complex biological process. Modelling radial growth in the trunk by linear‐circular regression with one mode and correlated errors has allowed the definition and assessment of a preferred direction for 1 and 2 years. Here, modified F$$ F $$‐tests are presented for 3 years, 1 mode/year; 1 year, 2 modes for possible main ...
Pierre Dutilleul, Tomoaki Imoto, Kunio Shimizu   +2 more
wiley   +1 more source

Least‐Resistance Path as a Proxy for Efficient Simulation of Solute Transport in Heterogeneous Porous Media

Geophysical Research Letters, Volume 53, Issue 14, 28 July 2026.
Abstract Accurately predicting solute transport remains a central challenge in hydrogeology due to limited data and multiscale subsurface heterogeneity. Fractional Brownian motion (fBm) is widely used to model the logarithm of hydraulic conductivity fields.
Binhao Li, Felipe P. J. de Barros, Muhammad Sahimi   +2 more
wiley   +1 more source

Confidential communication scheme based on uncertainty of underwater noisy channels

Tongxin xuebao, 2019
Aiming at the influence of the uncertainty of underwater noise on information transmission and the security problem of the communication over noisy channels,a confidential communication scheme based on the uncertainty of underwater noisy channels was ...
Ming XU, Fang CHEN
doaj   +2 more sources

Computational study of permeability in cardboard coating layers

AIChE Journal, Volume 72, Issue 7, July 2026.
Abstract We develop a virtual material structure model based on a combination of tessellations and Gaussian random fields for a coating layer of paperboard used for packaging and designed to facilitate printing on the surface. To fit the model to tomographic image data acquired using combined focused ion beam and scanning electron microscopy (FIB‐SEM),
Sandra Barman, Torben Nilsson Pingel, Niklas Lorén, Tobias Gebäck, Eva Olsson, Aila Särkkä, Magnus Röding   +6 more
wiley   +1 more source

The p-norm of circulant matrices [PDF]

, 2022
In this talk, we’ll present our study of the induced p-norm of circulant matrices A(n, +/- a, b), acting as operators on the Euclidean space R^n. For circulant matrices whose entries are nonnegative real numbers, in particular for A(n, a, b), we provide ...
Bouthat, Ludovick, Mashreghi, Javad, Morneau-Guérin, Frédéric   +2 more
core   +1 more source

A Preconditioned Majorization‐Minimization Method for ℓ2$$ {\ell}^2 $$‐ℓq$$ {\ell}^q $$ Minimization

Numerical Linear Algebra with Applications, Volume 33, Issue 3, June 2026.
ABSTRACT The need to minimize a linear combination of an expression that involves an ℓq$$ {\ell}^q $$‐norm of a linear transformation of the computed solution and the ℓ2$$ {\ell}^2 $$‐norm of the residual error arises in image restoration as well as in statistics.
A. Buccini, M. Donatelli, M. Ratto, L. Reichel   +3 more
wiley   +1 more source

Post‐surgery level of circulating DNA in stage III colon cancer patients: Impact on the reliability of minimal residual disease detection

International Journal of Cancer, Volume 158, Issue 10, Page 2771-2783, 15 May 2026.
What's New? Circulating nuclear DNA (cir‐nDNA)‐based assessment of minimal residual disease (MRD) offers powerful post‐surgery prognostic insight for stage III colon cancer (CC). Sparse knowledge of post‐surgical variations and origins in cir‐nDNA, however, has limited its clinical application.
Andrei Kudriavtsev, Saidi Daoud, Catalina Isabel Cofre Muñoz, Alexia Mirandola, Ekaterina Pisareva, Javier Gonzalo Ruiz, Marco Macagno, Nadia Saoudi Gonzalez, Evelyne Crapez, Marc Ychou, Ramon Salazar Soler, Elisabetta Fenocchio, Paula X. Fernandez Calotti, Thibault Mazard, Cristina Santos Vivas, Elena Elez, Federica Di Nicolantonio, Alain R. Thierry   +17 more
wiley   +1 more source

β3‐adrenoceptor agonism exerts lung protection in a rat model of bronchopulmonary dysplasia

British Journal of Pharmacology, Volume 183, Issue 10, Page 2497-2517, May 2026.
The β3‐adrenoceptors agonist BRL37344 promotes lung maturation, preventing the progression of experimental bronchopulmonary dysplasia. Absract Background and Purpose Bronchopulmonary dysplasia (BPD) affects premature newborns, particularly those receiving supplemental oxygen therapy.
Alessandro Pini, Patrizia Nardini, Virginia Zizi, Marta Molino, Maura Calvani, Francesco Carrozzo, Rachele Amato, Daniele Guasti, Denise Biagini, Fabio di Francesco, Ludovico Silvestri, Alessandra Franceschini, Daniele Bani, Elisa Imbimbo, Luca Filippi   +14 more
wiley   +1 more source

Circulant Type Matrices with the Sum and Product of Fibonacci and Lucas Numbers [PDF]

, 2014
Circulant type matrices have become an important tool in solving differential equations. In this paper, we consider circulant type matrices, including the circulant and left circulant and g-circulant matrices with the sum and product of Fibonacci and ...
Zhaolin Jiang, Yanpeng Gong, Yun Gao
core   +1 more source