Results 41 to 50 of about 4,217,963 (196)

Generalized Dai-Yuan conjugate gradient algorithm for training multi-layer feed-forward neural networks

open access: yesTikrit Journal of Pure Science, 2019
In this paper, we will present different type of CG algorithms depending on Peary conjugacy condition. The new conjugate gradient training (GDY) algorithm using to train MFNNs and prove it's descent property and global convergence for it and then we ...
Hind H. Mohammed
doaj   +1 more source

A new accelerated conjugate gradient method for large-scale unconstrained optimization

open access: yesJournal of Inequalities and Applications, 2019
In this paper, we present a new conjugate gradient method using an acceleration scheme for solving large-scale unconstrained optimization. The generated search direction satisfies both the sufficient descent condition and the Dai–Liao conjugacy condition
Yuting Chen, Mingyuan Cao, Yueting Yang
doaj   +1 more source

The dual boundary complex of the $SL_2$ character variety of a punctured sphere [PDF]

open access: yes, 2015
Suppose $C_1,\ldots , C_k$ are generic conjugacy classes in $SL_2({\mathbb C})$. Consider the character variety of local systems on ${\mathbb P}^1-\{ y_1,\ldots , y_k\}$ whose monodromy transformations around the punctures $y_i$ are in the respective ...
Simpson, Carlos
core   +6 more sources

Bounded Conjugacy Conditions

open access: yesIrish Mathematical Society Bulletin, 1984
This article is a survey of results on BFC-groups. In particular, it contains results bounding \(| G' |\) in terms of the maximum size n of a conjugacy class in G and results on the ''class-breadth conjecture'' for finite p-groups.
openaire   +2 more sources

An Efficient Conjugate Gradient Method Based on the Conjugacy Condition with an Application in Motion Control

open access: yesIranian Journal of Science
In this paper, we propose a new conjugate gradient method where the generated search direction satisfies the sufficient descent condition. Also, the calculation of the new conjugate gradient parameter incorporates the use of the conjugacy condition ...
T. Diphofu, P. Kaelo
semanticscholar   +1 more source

SL(2,R) Yang-Mills theory on a circle [PDF]

open access: yes, 1994
The kinematics of SL(2,R) Yang-Mills theory on a circle is considered, for reasons that are spelled out. The gauge transformations exhibit hyperbolic fixed points, and this results in a physical configuration space with a non-Hausdorff "network" topology.
Bengtsson, I., Hallin, J.
core   +3 more sources

Conjugacy classes and growth conditions

open access: yesJournal of Algebra, 2003
Let \(G\) be a finitely generated group and \(E\) a finite generating system. If \(g\in G\) let \(l_E(g)\) be the minimal length of an expression of \(g\) as a product of elements of \(E\), and let \(f_E(n)\) be the number of elements \(g\) of \(G\) for which \(l_E(G)\leq n\).
openaire   +1 more source

Collet, Eckmann and the bifurcation measure

open access: yes, 2017
The moduli space $\mathcal{M}_d$ of degree $d\geq2$ rational maps can naturally be endowed with a measure $\mu_\mathrm{bif}$ detecting maximal bifurcations, called the bifurcation measure. We prove that the support of the bifurcation measure $\mu_\mathrm{
Astorg, Matthieu   +3 more
core   +4 more sources

The Real Chevalley Involution

open access: yes, 2014
We consider the Chevalley involution in the context of real reductive groups. We show that if G(R) is the real points of a connected reductive group, there is an involution, unique up to conjugacy by G(R), taking any semisimple element to a conjugate of ...
Bourbaki   +7 more
core   +1 more source

A note on groups with many locally supersoluble subgroups [PDF]

open access: yesInternational Journal of Group Theory, 2015
It is proved here that if G is a locally graded group satisfying the minimal condition on subgroups which are not locally supersoluble, then G is either locally supersoluble or a \vCernikov group.
Francesco de Giovanni   +1 more
doaj  

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