Results 271 to 280 of about 2,530,049 (324)

Bridging Continuous and Discrete Models of the Anterior Temporal Lobe via Cortical Gradients

Alam TG, de Schotten MT, Binney R, Wang X, Margulies D, Jefferies B.   +5 more
europepmc   +1 more source

Additivity of Quadratic Maps on JB Algebras

Lobachevskii Journal of Mathematics, 2019
In line with several results ranging from operator algebras to ring theory, this paper discusses automatic additivity of maps satisfying particular multiplicative properties, thereby outlining an entangling between the multiplicative and additive structures. The structures under scrutiny are JB-algebras and quadratic maps between them: for JB-algebras \
Jan Hamhalter, Ekaterina Turilova, Hamhalter Jan   +2 more
exaly   +5 more sources

Anti-integrability for Three-Dimensional Quadratic Maps

SIAM Journal on Applied Dynamical Systems, 2022
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Amanda E Hampton, J D Meiss
exaly   +5 more sources

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Gradient Property of Quadratic Maps

Lobachevskii Journal of Mathematics, 2021
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
I. Karzhemanov
openaire   +2 more sources

On the iteration of certain quadratic maps over GF(p)

Discrete Mathematics, 2004
We consider the properties of certain graphs based on iteration of the quadratic maps x→x2 and x→x2−2 over a finite field GF(p)
Jeffrey Shallit
exaly   +3 more sources

Quadratic Maps Are Hard to Sample

ACM Transactions on Computation Theory, 2016
This note proves the existence of a quadratic GF(2) map p : {0, 1} n → {0, 1} such that no constant-depth circuit of size poly( n ) can sample the distribution (
Emanuele Viola
openaire   +3 more sources

Topology of quadratic maps and hessians of smooth maps

Journal of Soviet Mathematics, 1990
Let K be a cone in \({\mathbb{R}}^ k\) and \(K^*=\{\omega \in ({\mathbb{R}}^ k)^*:\omega\) (x)\(\leq 0\) for all \(x\in K\}\) its dual cone. Consider a symmetric bilinear map p on \({\mathbb{R}}^{N+1}\) with values in \({\mathbb{R}}^ k\). For \(\omega \in K^*\setminus \{0\}\) denote by \(\omega\) P the operator on \({\mathbb{R}}^{N+1}\) satisfying ...
A A Agrachev, Agrachev A A
exaly   +2 more sources

SINGULAR PERTURBATIONS OF QUADRATIC MAPS

International Journal of Bifurcation and Chaos, 2004
We give a complete description of the dynamics of the mapping fε(z)=z2+(ε/z) for positive real values of ε. We then consider two generalizations: the case of complex ε and the mapping z→zn+(ε/zm), where ε is positive and real. In both cases we provide a full characterization of the map for a certain set of parameters, and give observations based on ...
Robert L. Devaney, Kresimir Josic, Yakov Shapiro   +2 more
openaire   +2 more sources