Results 101 to 110 of about 441,203 (334)

SADDLE POINT VARIATIONAL METHOD FOR DIRAC CONFINEMENT [PDF]

Journal of Sciences, Islamic Republic of Iran, 2001
A saddle point variational (SPV ) method was applied to the Dirac equation as an example of a fully relativistic equation with both negative and positive energy solutions.
doaj  

Dirac cone, flat band and saddle point in kagome magnet YMn₆Sn₆. [PDF]

Nat Commun, 2021
Li M, Wang Q, Wang G, Yuan Z, Song W, Lou R, Liu Z, Huang Y, Liu Z, Lei H, Yin Z, Wang S.   +11 more
europepmc   +1 more source

Existence of traveling waves for diffusive-dispersive conservation laws

Electronic Journal of Differential Equations, 2013
In this work we show the existence existence and uniqueness of traveling waves for diffusive-dispersive conservation laws with flux function in $C^{1}(mathbb{R})$, by using phase plane analysis.
Cezar I. Kondo, Alex F. Rossini
doaj  

Exploring the World of Double Nanohoops

Angewandte Chemie International Edition, EarlyView.
As two conjugated nanohoops covalently linked by a central unit, double nanohoops are a relatively new class of strained nanocarbons with different properties to single nanohoops. This review gives an overview of all reported double nanohoops, categorizing their structures, syntheses, and discussing properties and applications. Creativity and synthetic
Luisa Rzesny, Philipp Seitz, Birgit Esser   +2 more
wiley   +1 more source

Using constraint preconditioners with regularized saddle-point problems [PDF]

, 2005
The problem of finding good preconditioners for the numerical solution of a certain important class of indefinite linear systems is considered. These systems are of a 2 by 2 block (KKT) structure in which the (2,2) block (denoted by -C) is assumed to be ...
Dollar, H. Sue, Gould, Nicholas I. M., Schilders, W. H. A., Wathen, A. J.   +3 more
core   +2 more sources

Cubic Regularized Newton Method for Saddle Point Models: a Global and Local Convergence Analysis [PDF]

, 2020
Kevin Huang, Junyu Zhang, Shuzhong Zhang
openalex   +1 more source

Ontogeny of the malleus in Mesocricetus auratus (Mammalia, Rodentia): Systematic and functional implications for the muroid middle ear

The Anatomical Record, EarlyView.
Abstract The three mammalian auditory ossicles enhance sound transmission from the tympanic membrane to the inner ear. The anterior anchoring of the malleus is one of the key characters for functional classification of the auditory ossicles. Previous studies revealed a medial outgrowth of the mallear anterior process, the processus internus ...
Franziska Fritzsche, Wolfgang Maier, Irina Ruf   +2 more
wiley   +1 more source

Robust Decision Trees Against Adversarial Examples

, 2019
Although adversarial examples and model robustness have been extensively studied in the context of linear models and neural networks, research on this issue in tree-based models and how to make tree-based models robust against adversarial examples is ...
Boning, Duane, Chen, Hongge, Hsieh, Cho-Jui, Zhang, Huan   +3 more
core  

Trabecular bone ontogeny of the human talus

The Anatomical Record, EarlyView.
Abstract Studies of trabecular ontogeny may provide insight into the factors that drive healthy bone development. There is a growing understanding of how the juvenile skeleton responds to these influences; however, gaps in our knowledge remain. This study aims to identify ontogenetic trabecular patterns and regional changes during development within ...
Rebecca A. G. Reid, Catriona Davies, Craig Cunningham   +2 more
wiley   +1 more source

Mountain Passes and Saddle Points

SIAM Review, 2015
Summary: Variational methods find solutions of equations by considering a solution as a critical point of an appropriately chosen function. Local minima and maxima are well-known types of critical points. We explore methods for finding critical points that are neither local maxima or minima, but instead are mountain passes or saddle points.
openaire   +3 more sources