Results 41 to 50 of about 2,048,777 (316)
Fixed points of periodic maps [PDF]
Proceedings of the National Academy of Sciences, 1980 Let f be a periodic differentiable map from a sphere to itself. A well-known conjecture of Smith asserts that in many cases (e.g., when the fixed points are isolated) the derivatives of f at its fixed points, regarded as Jacobian matrices, are linearly ...
Cappell, Sylvain E., Shaneson, Julius L.
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On the dynamics of sup-norm non-expansive maps [PDF]
, 2005 We present several results for the periods of periodic points of sup-norm non-expansive maps. In particular, we show that the period of each periodic point of a sup-norm non-expansive map $f\colon M\to M$, where $M\subset \mathbb{R}^n$, is at most ...
Lemmens, Bas +3 more
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Artificial halo orbits for low-thrust propulsion spacecraft [PDF]
, 2009 We consider periodic halo orbits about artificial equilibrium points near to the Lagrange points L1 and L2 in the circular restricted three-body problem, where the third body is a low-thrust propulsion spacecraft in the Sun-Earth system.
Baig, Shahid +2 more
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Fixed Point Theory and Applications, 2004 We propose, in the general setting of topological spaces, a definition of two-dimensional oriented cell and consider maps which possess a property of stretching along the paths with respect to oriented cells. For these maps, we prove some theorems on the
Fabio Zanolin, Duccio Papini
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The periodic points of ε-contractive maps in fuzzy metric spaces
Applied General Topology, 2021 In this paper, we introduce the notion of ε-contractive maps in fuzzy metric space (X, M, ∗) and study the periodicities of ε-contractive maps. We show that if (X, M, ∗) is compact and f : X −→ X is ε-contractive, then P(f) = ∩ ∞n=1f n (X) and each ...
Taixiang Sun +4 more
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Asymptotically Periodic and Bifurcation Points in Fractional Difference Maps
Fractal and FractionalThe first step in investigating fractional difference maps, which do not have periodic points except fixed points, is to find asymptotically periodic and bifurcation points and draw asymptotic bifurcation diagrams.
Mark Edelman
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Counting Periodic Points in Parallel Graph Dynamical Systems
Complexity, 2020 Let F:0,1n⟶0,1n be a parallel dynamical system over an undirected graph with a Boolean maxterm or minterm function as a global evolution operator. It is well known that every periodic point has at most two periods.
Juan A. Aledo +4 more
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Periodic points and periods for operators on hilbert space
Discrete and Continuous Dynamical Systems, 2013 zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Chiranjeevi, P. +2 more
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On solving periodic Riccati equations [PDF]
, 2008 Numerically reliable algorithms to compute the periodic non-negative definite stabilizing solutions of the periodic differential Riccati equation (PRDE) and discrete-time periodic Riccati equation (DPRE) are proposed. For the numerical solution of PRDEs,
A. Varga, Varga, Andreas
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Pediatric Blood &Cancer, EarlyView.ABSTRACT Background Fertility preservation (FP) is increasingly integrated into the care of pediatric patients exposed to gonadotoxic therapy or conditioning for hematopoietic stem cell transplantation (HSCT), yet perioperative data in infants and toddlers remain scarce.
Kerstin Saalabian +13 more
wiley +1 more source