Results 61 to 70 of about 166,080,641 (165)
D6.1 SUMMARY OF THE STUDIES, THEMATIC PUBLICATIONS AND RECOMMENDATIONS [PDF]
, 2012 The results of ODE provide a comprehensive overview of data sharing today and shed new light on the future challenge of data sharing. This resulted in detailed recommendations for the individual stakeholders involved in data sharing, but also overall ...
Herterich, Patricia +9 more
core +1 more source
Stochastic Gradient Descent in High Dimensions for Multi‐Spiked Tensor PCA
Communications on Pure and Applied Mathematics, Volume 79, Issue 10, Page 2291-2369, October 2026.ABSTRACT We study the high‐dimensional dynamics of online stochastic gradient descent (SGD) for the multi‐spiked tensor model. This multi‐index model arises from the tensor principal component analysis (PCA) problem with multiple spikes, where the goal is to estimate the unknown signal vectors within the N$N$‐dimensional unit sphere through maximum ...
Gérard Ben Arous +2 more
wiley +1 more source
Analysis of Eigenvalue Clustering Leads to Optimal Scaling in Numerical Radiative Transfer
Numerical Linear Algebra with Applications, Volume 33, Issue 5, October 2026.ABSTRACT We consider a multidimensional polychromatic radiative transfer (RT) problem, accounting for scattering processes in a general form, that is, anisotropic (dipole) scattering with partial frequency redistribution. Given a discrete ordinates (SN$$ {S}_N $$) discretization, we report the corresponding matrix structures, depending on the model and
Pietro Benedusi +3 more
wiley +1 more source
T(w)o Patch or Not T(w)o Patch: A Novel Biocontrol Model
Mathematical Methods in the Applied Sciences, Volume 49, Issue 13, Page 14697-14743, 15 September 2026.ABSTRACT A number of top‐down biocontrol models have been proposed where the introduced predators' efficacy is enhanced via the provision of additional food (AF). However, if the predator has a pest‐dependent monotone functional response, pest extinction is unattainable. In the current manuscript, we propose a model where a predator with pest‐dependent
Urvashi Verma +2 more
wiley +1 more source
Minimal Retraction of Space-time and Their Foldings [PDF]
, 2009 The folding of a manifold was, firstly introduced by Robertson in [1977] . Since then many authers have studied the folding of manifolds s. The deformation retracts of the manifolds defined and discussed.
El-Ahmady, A. E., Rafat, H.
core +1 more source
Mathematical Methods in the Applied Sciences, Volume 49, Issue 13, Page 14964-15009, 15 September 2026.ABSTRACT We develop a unified mathematical framework extending classical moment theory from discrete integer orders to a continuous spectrum of real orders f>0$$ f>0 $$, providing a systematic statistical characterization of complex systems exhibiting power‐law behavior.
Farrukh A. Chishtie
wiley +1 more source
Martingales on manifolds and geometric Ito calculus [PDF]
This work studies properties of stochastic processes taking values in a differential manifold M with a linear connection Γ, or in a Riemannian manifold with a metric connection.
Darling, R. W. R.
core
Separating manifolds in slow-fast systems [PDF]
, 2005 There are many applications that lead to models involving different timescales. For example, this is particularly the case for models of neurons, which involve dynamics of ionic channels across the cell membrane.
England, James, Osinga, HM
core
Mechanistic Insights Into the Thermal Pyrolysis of Branched Polyolefins Using Kinetic Modeling
ChemSusChem, Volume 19, Issue 17, 14 September 2026.We present a detailed mechanistic analysis of thermal pyrolysis of linear and branched polyolefins. The pyrolytic pathways in high‐density polyethylene (HDPE), polypropylene (PP), and linear low‐density polyethylene (LLDPE) are compared. The mechanistic model for LLDPE is newly developed, based on the population balance approach incorporating reactions
Aswathy K. Raghu +5 more
wiley +1 more source
International Journal of Adaptive Control and Signal Processing, Volume 40, Issue 9, Page 1932-1944, September 2026.This article proposes a convergent adaptive observer for a damped wave PDE and an infinite‐dimensional ODE coupled in cascade using sampled‐in‐space ODE state measurements. The proposed observer estimates the distributed states of the PDE and ODE along with unknown PDE parameters and spatial input.
Zehor Belkhatir +2 more
wiley +1 more source