Results 101 to 110 of about 2,869,100 (185)
Polynomial Preconditioning for Indefinite Matrices
Numerical Linear Algebra with Applications, Volume 33, Issue 5, October 2026.ABSTRACT Polynomial preconditioning is an important tool in solving large linear systems and eigenvalue problems. A polynomial from GMRES can be used to precondition restarted GMRES and restarted Arnoldi. Here we give methods for indefinite matrices that make polynomial preconditioning more generally applicable. The new techniques include balancing the
Hayden Henson, Ronald B. Morgan
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
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Higher Structure of Chiral Symmetry. [PDF]
Commun Math PhysCopetti C +3 more
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Computer algebra in gravity research. [PDF]
Living Rev Relativ, 2018 MacCallum MAH.
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Proteins: Structure, Function, and Bioinformatics, Volume 94, Issue 10, Page 1671-1685, October 2026.ABSTRACT The GTPase KRAS executes a conformational switch between a GTP‐bound active state and a GDP‐bound inactive state, a process central to oncogenic signaling. However, the structural basis of this switching at the level of residue‐contact organization remains incompletely characterized by traditional binary structural models.
Fatma Senguler Ciftci, Burak Erman
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String Invention, Viable 3-3-1 Model, Dark Matter Black Holes. [PDF]
Entropy (Basel)Nielsen HB.
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Spacelike Singularities and Hidden Symmetries of Gravity. [PDF]
Living Rev Relativ, 2008 Henneaux M, Persson D, Spindel P.
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Neural Correlates of Apathy in Multiple System Atrophy: A Clinical and Perfusion Imaging Study
European Journal of Neurology, Volume 33, Issue 10, October 2026.In 76 patients with multiple system atrophy (MSA) and relatively preserved global cognition, apathy was present in 55.3%, with no association with motor severity or depressive symptoms. Reduced medial prefrontal cortex (mPFC) perfusion was independently associated with apathy after adjustment for clinical variables, while exploratory covariance ...
Yuki Nakagawa +9 more
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On the Classification of Bosonic and Fermionic One-Form Symmetries in 2 + 1 d and 't Hooft Anomaly Matching. [PDF]
Commun Math PhysBalasubramanian M +2 more
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On the maximum likelihood degree of Gaussian graphical models
Bulletin of the London Mathematical Society, Volume 58, Issue 10, October 2026.Abstract In this paper we revisit the likelihood geometry of Gaussian graphical models. We give a detailed proof that the ML‐degree behaves monotonically on induced subgraphs. Furthermore, we complete a missing argument that the ML‐degree of the nth$n{\rm th}$ cycle is larger than 1 for any n⩾4$n\geqslant 4$, therefore completing the characterization ...
Carlos Améndola +3 more
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