Results 11 to 20 of about 2,516,410 (332)

Quadratic volume-preserving maps [PDF]

open access: yesNonlinearity, 1998
We study quadratic, volume preserving diffeomorphisms whose inverse is also quadratic. Such maps generalize the Henon area preserving map and the family of symplectic quadratic maps studied by Moser. In particular, we investigate a family of quadratic volume preserving maps in three space for which we find a normal form and study invariant sets.
Lomelí, Héctor E., Meiss, James D.
openaire   +5 more sources

Degeneration of quadratic polynomial endomorphisms to a Henon map [PDF]

open access: yesIndiana University Mathematics Journal, 2020
For an algebraic family $(f_t)$ of regular quadratic polynomial endomorphisms of $\mathbb{C}^2$ parametrized by $\mathbb{D}^*$ and degenerating to a Hénon map at $t=0$, we study the continuous (and indeed harmonic) extendibility across $t=0$ of a potential of the bifurcation current on $\mathbb{D}^*$ with the explicit computation of the non-archimedean
Bianchi F, Okuyama Y
openaire   +4 more sources

Some Criteria for Chaos and no Chaos in the Quadratic Map of the Plane

open access: yes, 2009
This paper gives some criteria for the existence and the non- existence of chaotic attractors in the general 2-D quadratic map.
Z. Elhadj, J. Sprott
semanticscholar   +2 more sources

Quadratic maps and Bockstein closed group extensions [PDF]

open access: yesTransactions of the American Mathematical Society, 2007
Let E E be a central extension of the form
Pakianathan J., Yalçin, E.
openaire   +7 more sources

Quadratic planar differential systems with algebraic limit cycles via quadratic plane Cremona maps [PDF]

open access: yes, 2021
In this paper we study the action of planar birational transformations, also known as plane Cremona maps, on quadratic planar differential systems. We provide geometrical characterizations of when a quadratic system is transformed into a new quadratic ...
Llibre Saló, Jaume   +3 more
core   +2 more sources

Iteration of Quadratic Maps on Coquaternions [PDF]

open access: yesInternational Journal of Bifurcation and Chaos, 2017
This paper is concerned with the study of the iteration of the quadratic coquaternionic map [Formula: see text], where c is a fixed coquaternionic parameter. The fixed points and periodic points of period two are determined, revealing the existence of a type of sets of these points which do not occur in the classical complex case: sets of nonisolated ...
Maria Irene Falcão   +3 more
openaire   +2 more sources

Stability of Approximate Quadratic Mappings [PDF]

open access: yesJournal of Inequalities and Applications, 2010
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Juri Lee, Hark-Mahn Kim, Minyoung Kim
openaire   +8 more sources

Multivariate nonnegative quadratic mappings [PDF]

open access: yesSSRN Electronic Journal, 2003
Consider a closed convex cone \(C\subseteq\mathbb R^m\) defining on \(\mathbb R^m\) the usual cone order and thus a notion of positivity. Given a function \(f:\mathbb R^n\rightarrow \mathbb R^m\) and a domain \(D\subseteq \mathbb R^n,\) the question whether \(f(D)\subseteq C,\) i.e. whether \(f| D\) is nonnegative w.r.t. \(C\) can be difficult.
Zhi-Quan Luo   +2 more
openaire   +5 more sources

Effect of Dietary Marine Microalgae () Powder on Egg Production, Blood Lipid Profiles, Egg Quality, and Fatty Acid Composition of Egg Yolk in Layers [PDF]

open access: yesAsian-Australasian Journal of Animal Sciences, 2015
Two hundred and sixteen Institut de Sélection Animale (ISA) brown layers (40 wks of age) were studied for 6 wks to examine the effect of microalgae powder (MAP) on egg production, egg quality, blood lipid profile, and fatty acid concentration of egg yolk.
J. H. Park, S. D. Upadhaya, I. H. Kim
doaj   +1 more source

Elliptic Bubbles in Moser's 4D Quadratic Map: The Quadfurcation [PDF]

open access: yesSIAM Journal on Applied Dynamical Systems, 2018
Moser derived a normal form for the family of four-dimensional, quadratic, symplectic maps in 1994. This six-parameter family generalizes Henon's ubiquitous 2D map and provides a local approximation for the dynamics of more general 4D maps.
A. Bäcker, J. Meiss
semanticscholar   +1 more source

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