Results 71 to 80 of about 13,144,199 (261)

Fractal Waves and Caustic Signatures in a Superdeterministic Framework: Benchmarking PINNs and PI-GNNs for the Fractional Klein–Gordon Equation

Fractal and Fractional
While superdeterministic and fractal spacetime models offer compelling alternative perspectives on quantum foundations, the simulation and validation of effective wave dynamics in such non-differentiable, deterministic settings remain computationally and
Luis Rojas, José Garcia
doaj   +1 more source

On the regularity of the complex Hessian equation

, 2022
This note aims to investigate the regularity of a solution to the Dirichlet problem for the complex Hessian equation, which has a density of the m-Hessian measure that belongs to Lq, for q ≤ mn.
Czyż, Rafał,, Czyż, Rafał, Åhag, Per, Åhag, Per,, Per Åhag, Rafał Czyż   +5 more
core   +1 more source

Learning sparse mixture‐of‐experts generalized linear models in ultrahigh dimensions

Canadian Journal of Statistics, EarlyView.
Abstract Motivated by the challenges of heterogeneity and high dimensionality in the analysis of modern data, we investigate continuous regularization methods for learning sparse mixture‐of‐experts generalized linear models (MoE‐GLM). Although there are foundational results about regularized estimators in a broad class of regression models including ...
Pengqi Liu, Abbas Khalili
wiley   +1 more source

extBatchMarking: An R package for hidden Markov models for extended batch data

Canadian Journal of Statistics, EarlyView.
Abstract We describe a new R package for extended batch‐mark methods. Extended batch marking is a valuable and efficient technique for estimating population sizes and survival probabilities of wild animals. It assigns the same identifier to a group of animals simultaneously, allowing researchers to track their survival over time.
Kehinde Olobatuyi, Simon Johns, Matthew R.P. Parker, Steve Hof, Laura L.E. Cowen   +4 more
wiley   +1 more source

Entire subsolutions of a kind of k-Hessian type equations with gradient terms

, 2022
In this paper, we consider a kind of $k$-Hessian type equations $S_k^{\frac{1}{k}}(D^2u+μ|D u|I)= f(u)$ in $\mathbb{R}^n$, and provide a necessary and sufficient condition of $f$ on the existence and nonexistence of entire admissible subsolutions, which can be regarded as a generalized Keller-Osserman condition.
Ji, Jingwen, Jiang, Feida, Li, Mengni
openaire   +3 more sources

Joint copula‐based beta regression with covariate‐dependent dispersion for malaria indicators

Canadian Journal of Statistics, EarlyView.
Abstract Malaria surveillance relies on multiple indicators that reflect different aspects of transmission and disease burden, yet these outcomes are often analyzed separately under constant‐variance assumptions. Such approaches may obscure residual dependence and heterogeneity in variability. Using Demographic and Health Survey data from Burkina Faso (
Guanjie Lyu, Cindy Feng
wiley   +1 more source

Quantifying Actin Persistence Length in S. pombe and S. cerevisiae: The Impact of Data Size, Filament Length and Fitting Strategy

Cytoskeleton, EarlyView.
ABSTRACT Actin filaments exhibit isoform and species‐specific mechanical properties that are commonly quantified via their persistence length, yet the reliability of such measurements depends not only on the analysis method but also on dataset characteristics.
Peter Nietmann, Andrejus Suchenko, Andreas Janshoff, Mohan K. Balasubramanian   +3 more
wiley   +1 more source

Compact Manifolds With Unbounded Nilpotent Fundamental Groups and Positive Ricci Curvature

Communications on Pure and Applied Mathematics, EarlyView.
ABSTRACT It follows from the work of Kapovitch and Wilking that a closed manifold with nonnegative Ricci curvature has a uniformly almost nilpotent fundamental group. Leftover questions and conjectures, have asked if in this context the fundamental group is actually uniformly almost abelian. The main goal of this work is to construct examples (Mk9,gk)$(
Elia Bruè, Aaron Naber, Daniele Semola
wiley   +1 more source

The economics of all‐year fresh food supply: Insights from Norwegian Salmon farming

Journal of the Agricultural and Applied Economics Association, EarlyView.
Abstract Year‐round availability of fresh foods such as blueberries, salmon, and asparagus has expanded rapidly due to advances in production and logistics since the turn of the century. We develop an equilibrium model for the competitive management of seasonally produced and continuously supplied fresh foods, deriving outcomes for price, harvest ...
Atle Oglend, Frank Asche, Tore Selland Kleppe, Bård Misund   +3 more
wiley   +1 more source

Exploring N-soliton solutions, multiple rogue wave and the linear superposition principle to the generalized hirota satsuma-ito equation

Scientific Reports
In this work, numerous rogue wave solution strategy (MRWSS) agreeing to the Hirota bilinear hypothesis is utilized. The said strategy to build different soliton wave solutions for the generalized Hirota-Satsuma-Ito (GHSI) condition is considered.
Yun Guo, Yang Chen, Jalil Manafian, Somaye Malmir, K. H. Mahmoud, A. SA. Alsubaie   +5 more
doaj   +1 more source