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On the placement of hydrogen and helium in the periodic system: a response to cvetković & petruševski
(Ministry of Education and Science, 2017-10)
On the Placement of Hydrogen and Helium in the Periodic System: A Response to Cvetković and Petrusevski
Period doubling in period-one steady states
(American Physical Society, 2018-02)
Nonlinear classical dissipative systems present a rich phenomenology in their "route to chaos," including period doubling, i.e., the system evolves with a period which is twice that of the driving. However, typically the ...
On existence of periodic solutions for Kepler type problems
(Juliusz Schauder Ctr Nonlinear Studies, 2016-12)
We prove existence and multiplicity of periodic motions for the forced $2$-body problem under conditions of topological character. In different cases, the lower bounds obtained for the number of solutions are related to ...
Periodic Orbits and Chaos in Nonsmooth Delay Differential Equations
(World Scientific, 2019-09)
In this paper, we present a method to find periodic solutions for certain types of nonsmooth differential equations or nonsmooth delay differential equations. We apply the method to three examples, the first is a second-order ...
The developing optic tectum: An asymmetrically organized system and the need for a redefinition of the notion of sensitive period
(Pergamon-Elsevier Science Ltd, 2019-04)
The present article summarizes the main events involved in the isthmic organizer and optic tectum determination and analyses how optic tectum patterning is translated, by the organized operation of several specific cell ...
On the Solvability of the Periodically Forced Relativistic Pendulum Equation on Time Scales
(arXiv.org, 2020-05)
We study some properties of the range of the relativistic pendulum operator P, that is, the set of possible continuous T-periodic forcing terms p for which the equation P x = p admits a T-periodic solution over a T - ...
Theory of short periodic orbits for partially open quantum maps
(American Physical Society, 2016-07)
We extend the semiclassical theory of short periodic orbits [M. Novaes et al., Phys. Rev. E 80, 035202(R) (2009)] to partially open quantum maps, which correspond to classical maps where the trajectories are partially ...
Non-linear dynamic response to simple harmonic excitation of a thin-walled beam with a breathing crack
(Elsevier Science Inc, 2016-01-01)
The dynamic response of a thin-walled beam with a breathing crack is studied by employing a refined one-dimensional model introduced for such purpose. It is shown that, due to the non-linearity of breathing, some effects ...
Freedom and rules in human sequential performance: A refractory period in eye-hand coordination
(Association for Research in Vision and Ophthalmology, 2013-03-11)
In action sequences, the eyes and hands ought to be coordinated in precise ways. The mechanisms governing the architecture of encoding and action of several effectors remain unknown. Here we study hand and eye movements ...
On period doubling bifurcations of cycles and the harmonic balance method
(Pergamon-Elsevier Science Ltd, 2006-02)
This works attempts to give quasi-analytical expressions for subharmonic solutions appearing in the vicinity of a Hopf bifurcation. Starting with well-known tools as the graphical Hopf method for recovering the periodic ...