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Saddle-Point Dynamics: Conditions for Asymptotic Stability of Saddle Points [PDF]

open access: greenSIAM Journal on Control and Optimization, 2017
26 pages, To appear in SIAM Journal on Control and ...
Cherukuri, Ashish   +2 more
core   +9 more sources

Hillclimbing saddle point inflation [PDF]

open access: yesPhysics Letters B, 2018
Recently a new inflationary scenario was proposed in [1] which can be applicable to an inflaton having multiple vacua. In this letter, we consider a more general situation where the inflaton potential has a (UV) saddle point around the Planck scale. This
Kiyoharu Kawana, Katsuta Sakai
doaj   +5 more sources

A new generalized shift-splitting method for nonsymmetric saddle point problems

open access: goldAdvances in Mechanical Engineering, 2022
Recently, Huang and Huang [ Journal of Computational and Applied Mathematics , 328 (2018) 381–399] proposed a modified generalized shift-splitting preconditioned (denoted by MGSSP) method for solving large sparse saddle point problems, and gave the ...
Tao Wei, Li-Tao Zhang
doaj   +2 more sources

Saddle point localization of molecular wavefunctions. [PDF]

open access: yesSci Rep, 2016
AbstractThe quantum mechanical description of isomerization is based on bound eigenstates of the molecular potential energy surface. For the near-minimum regions there is a textbook-based relationship between the potential and eigenenergies. Here we show how the saddle point region that connects the two minima is encoded in the eigenstates of the model
Mellau GCh   +4 more
europepmc   +9 more sources

Saddle point criteria for semidefinite semi-infinite convex multiobjective optimization problems [PDF]

open access: diamondYugoslav Journal of Operations Research, 2022
In this paper, we consider a nonlinear semidefinite semi-infinite convex multiobjective optimization problem where the feasible region is determined by finite number of equality and infinite number of inequality constraints.
Laha Vivek   +2 more
doaj   +3 more sources

Saddle point states and energy barriers for vortex entrance and exit in superconducting disks and rings [PDF]

open access: green, 2000
The transitions between the different vortex states of thin mesoscopic superconducting disks and rings are studied using the non-linear Ginzburg-Landau functional.
Baelus, B. J.   +2 more
core   +2 more sources

Saddle point approximation

open access: green, 2009
We extend known saddlepoint tail probability approximations to multivariate cases, including multivariate conditional cases. Our first approximation applies to both continuous and lattice variables, and requires the existence of a cumulant generating function.
Jixin Li
openaire   +2 more sources

Saddle point approximation to Higher order [PDF]

open access: yesVojnotehnički Glasnik, 2022
Introduction/purpose: Saddle point approximation has been considered in the paper Methods: The saddle point method is used in several different fields of mathematics and physics.
Nicola Fabiano, Nikola Mirkov
doaj   +1 more source

Kaczmarz method for saddle point systems [PDF]

open access: yesE3S Web of Conferences, 2021
The Kaczmarz method is presented for solving saddle point systems. The convergence is analyzed. Numerical examples, compared with classical Krylov subspace methods, SOR-like method (2001) and recent modified SOR-like method (2014), show that the Kaczmarz
Wang Jinmei, Yin Lizi, Wang Ke
doaj   +1 more source

Latent heterogeneity of muscle‐invasive bladder cancer in patient characteristics and survival: A population‐based nation‐wide study in the Bladder Cancer Data Base Sweden (BladderBaSe)

open access: yesCancer Medicine, 2023
Background Patients with muscle‐invasive bladder cancer (MIBC) constitute a heterogenous group in terms of patient and tumour characteristics (‘case‐mix’) and prognosis.
Christel Häggström   +4 more
doaj   +1 more source

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