Results 21 to 30 of about 852 (63)
Chaos in Duopoly Games via Furstenberg Family Couple
Complexity, 2019 Assume that H1 and H2 are two given closed subintervals of ℝ and that f2:H1⟶H2 and f1:H2⟶H1 are continuous maps. Let ϒh1,h2=f1h2,f2h1 be a Cournot map over the space H1×H2. In this paper, we study G1,G2-chaos (resp.
Yu Zhao, Risong Li
doaj +1 more source
Reconstruction of some cosmological models in f(R,T) gravity
, 2012 In this paper, we reconstruct cosmological models in the framework of $f(R,T)$ gravity, where $R$ is the Ricci scalar and $T$ is the trace of the stress-energy tensor.
A. Felice De +32 more
core +1 more source
Periodic orbits of period 3 in the disc
, 1994 Let f be an orientation preserving homeomorphism of the disc D2 which possesses a periodic point of period 3. Then either f is isotopic, relative the periodic orbit, to a homeomorphism g which is conjugate to a rotation by 2 pi /3 or 4 pi /3, or f has a ...
B Kolev +16 more
core +3 more sources
IFSs consisting of generalized convex contractions
Analele Stiintifice ale Universitatii Ovidius Constanta: Seria Matematica, 2017 In this paper we introduce the concept of iterated function system consisting of generalized convex contractions. More precisely, given n ∈ ℕ*, an iterated function system consisting of generalized convex contractions on a complete metric space (X; d) is
Georgescu Flavian
doaj +1 more source
Standardization for Defence Procurement - European Handbook : CEN Workshop 10 [PDF]
, 2005 The European Commission (EC), DG Enterprise, endeavours the competitiveness of the European Defence Industry. The plethora of (national) standards, more than 10.000, are recognised by the EC as a major constraint and cost driver.
Bresson, Alain +23 more
core +1 more source
Metrizable universal minimal flows of Polish groups have a comeagre orbit
, 2017 We prove that, whenever $G$ is a Polish group with metrizable universal minimal flow $M(G)$, there exists a comeagre orbit in $M(G)$. It then follows that there exists an extremely amenable, closed, coprecompact $G^*$ of $G$ such that $M(G) = \hat{G/G^*}$
Melleray, Julien +2 more
core +2 more sources
J-class weighted shifts on the space of bounded sequences of complex numbers
, 2008 We provide a characterization of $J$-class and $J^{mix}$-class unilateral weighted shifts on $l^{\infty}(\mathbb{N})$ in terms of their weight sequences. In contrast to the previously mentioned result we show that a bilateral weighted shift on $l^{\infty}
Costakis, George, Manoussos, Antonios
core +1 more source
Construction of minimal non-invertible skew-product maps on 2-manifolds
, 2014 Applying the Hric-J\"ager blow up technique, we give an affirmative answer to the question about the existence of non-invertible minimal circle-fibered self-maps of the Klein bottle.
Trofimchuk, Sergei, Šotola, Jakub
core +1 more source
Energy conditions in f(T) gravity with higher-derivative torsion terms
, 2017 We study the energy conditions in the framework of the modi- fied gravity with higher-derivative torsional terms in the action. We discuss the viability of the model by studying the energy conditions in terms of the cosmographical parameters like Hubble,
Azizi, Tahereh, Gorjizadeh, Miysam
core +1 more source
A Class of Distal Functions on Semitopological Semigroups [PDF]
, 2009 The norm closure of the algebra generated by the set $\{n\mapsto {\lambda}^{n^k}:$ $\lambda\in{\mathbb {T}}$ and $k\in{\mathbb{N}}\}$ of functions on $({\mathbb {Z}}, +)$ was studied in \cite{S} (and was named as the Weyl algebra).
Jabbari, A., Vishki, H. R. E.
core +1 more source