Results 21 to 30 of about 19,216 (267)

Exploring and Exploiting Conditioning of Reinforcement Learning Agents

open access: yesIEEE Access, 2020
The outcome of Jacobian singular values regularization was studied for supervised learning problems. In supervised learning settings for linear and nonlinear networks, Jacobian regularization allows for faster learning.
Arip Asadulaev   +3 more
doaj   +1 more source

Application of seeding and automatic differentiation in a large scale ocean circulation model [PDF]

open access: yesModeling, Identification and Control, 2005
Computation of the Jacobian in a 3-dimensional general ocean circulation model is considered in this paper. The Jacobian matrix considered in this paper is square, large and sparse.
Frode Martinsen, Dag Slagstad
doaj   +1 more source

Inverse Function Theorems and Jacobiansover Metric Spaces

open access: yesAnalysis and Geometry in Metric Spaces, 2014
We present inversion results for Lipschitz maps f : Ω ⊂ ℝN → (Y, d) and stability of inversionfor uniformly convergent sequences. These results are based on the Area Formula and on the l.s.c. of metricJacobians.
Granieri Luca
doaj   +1 more source

Soliton dynamics based on exact solutions of conformable fractional discrete complex cubic Ginzburg–Landau equation

open access: yesResults in Physics, 2021
The Jacobian elliptic function expansion method is modified by considering conformable fractional derivative and applying a lot of relations among Jacobian elliptic functions.
Jia-Jie Fang   +5 more
doaj   +1 more source

Reduced-cost construction of Jacobian matrices for high-resolution inversions of satellite observations of atmospheric composition [PDF]

open access: yesAtmospheric Measurement Techniques, 2021
Global high-resolution observations of atmospheric composition from satellites can greatly improve our understanding of surface emissions through inverse analyses.
H. Nesser   +7 more
doaj   +1 more source

Autoduality of the Compactified Jacobian [PDF]

open access: yesJournal of the London Mathematical Society, 2002
The following autoduality theorem is proved for an integral projective curve C in any characteristic. Given an invertible sheaf L of degree 1, form the corresponding Abel map AL:C→, which maps C into its compactified Jacobian, and form its pullback map , which carries the connected component of 0 in the Picard scheme back to the Jacobian.
Esteves, Eduardo   +2 more
openaire   +2 more sources

Design of inverse kinematics algorithms: extended Jacobian approximation of the dynamically consistent Jacobian inverse

open access: yesArchives of Control Sciences, 2015
The paper presents the approximation problem of the inverse kinematics algorithms for the redundant manipulators. We introduce the approximation of the dynamically consistent Jacobian by the extended Jacobian.
Ratajczak Joanna
doaj   +1 more source

Visual Error Constraint Free Visual Servoing Using Novel Switched Part Jacobian Control

open access: yesIEEE Access, 2022
This research advances the state of the image-based visual servoing (IBVS) of robotic arms to handle very large visual errors without the camera advance/retreat problem.
Zubair Arif   +3 more
doaj   +1 more source

On the total variation of the Jacobian

open access: yesJournal of Functional Analysis, 2004
Let \(\Omega\) be an open subset of \({\mathbb R}^2\), and \(u=(u^1,u^2)\in L^\infty_{\text{ loc}}(\Omega;{\mathbb R}^2)\cap W^{1,p}(\Omega;{\mathbb R}^2)\) for some \(p>1\). In the paper, a comparison is carried out among the classical Jacobian determinant \(\det Du\) defined a.e. in \(\Omega\), the distributional Jacobian determinant \(\text{ Det} Du\
I. FONSECA, N. FUSCO, MARCELLINI, PAOLO
openaire   +4 more sources

JACOBIAN CONJECTURE, TWO-DIMENSIONAL CASE

open access: yesПроблемы анализа, 2016
The Jacobian Conjecture was first formulated by O. Keller in 1939. In the modern form it supposes injectivity of the polynomial mapping f: R^n → R^n (C^n → C^n) provided that jacobian J_f ≡ const ≠ 0.
V. V. Starkov
doaj   +1 more source

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