All-at-once multigrid approaches for one-dimensional space-fractional diffusion equations. [PDF]
Calcolo, 2021 Donatelli M +3 more
europepmc +1 more source
Progressively Projected Newton's Method
Computer Graphics Forum, EarlyView.Abstract Newton's Method is widely used to find the solution of complex non‐linear simulation problems. To guarantee a descent direction, it is common practice to clamp the negative eigenvalues of each element Hessian prior to assembly—a strategy known as Projected Newton (PN)—but this perturbation often hinders convergence.
J. A. Fernández‐Fernández +2 more
wiley +1 more source
Efficient preconditioning strategies for accelerating GMRES in block-structured nonlinear systems for image deblurring. [PDF]
PLoS OneKhalid R +4 more
europepmc +1 more source
Biodiversity‐driven spatial conservation planning to delineate temporally stable regions
Conservation Biology, EarlyView.Abstract The accelerating loss of biodiversity underscores the critical need for effective conservation strategies, particularly in the face of climate change and anthropogenic pressures. We devised a conservation planning framework that adopts a temporal stacking approach to species distribution models and landscape connectivity analyses. These models
Mattia Iannella +5 more
wiley +1 more source
A Two-Level Preconditioner for the CASSCF Linear-Response Equations. [PDF]
J Phys Chem AHelmich-Paris B.
europepmc +1 more source
A link between the steepest descent method and fixed-point iterations. [PDF]
Optim Lett, 2023 Heid P.
europepmc +1 more source
New Preconditioners Based on the GPHSS Iterative Method for Solving Saddle Point Problems
DEStech Transactions on Computer Science and Engineering, 2017 Shiheng Wang, Jinmei Wang
openaire +2 more sources
Three-Dimensional Multi-Material Topology Optimization: Applying a New Mapping-Based Projection Function. [PDF]
Materials (Basel)Simonetti HL +4 more
europepmc +1 more source
Beyond the Rebel ‘Territorial Trap’: Governing Armed Sovereign Formations in Eastern Myanmar
Development and Change, EarlyView.ABSTRACT Territorial control is a central concept in the study of civil wars and rebel governance. However, scholars often fall into a ‘territorial trap’, assuming that territorial control is either an outcome of or a precondition for armed governance. Based on immersive fieldwork in eastern Myanmar, this article traces how different spatial orderings ...
Tony Neil, Saw Day Chit Htoo
wiley +1 more source
Efficient Shift-and-Invert Preconditioning for Multi-GPU Accelerated Density Functional Calculations. [PDF]
J Chem Theory ComputWoo J, Youn Kim W, Choi S.
europepmc +1 more source