Results 71 to 80 of about 9,550,679 (229)

New results for time reversed symplectic dynamic systems and quadratic functionals

Electronic Journal of Qualitative Theory of Differential Equations, 2012
In this paper, we examine time scale symplectic (or Hamiltonian) systems and the associated quadratic functionals which contain a forward shift in the time variable.
Roman Simon Hilscher, Petr Zemanek
doaj   +1 more source

Virial Extension for Discrete Data Series

Signals
The Virial theorem has been applied with considerable success in various fields of natural sciences. This work proposes an extension of the theorem applied to discrete data series.
Dino Otero, Ariel Amadio, Leandro Robles Dávila, Marcos Maillot, Cristian Bonini, Walter Legnani   +5 more
doaj   +1 more source

Counterdiabatic control of transport in a synthetic tight-binding lattice

Physical Review Research, 2020
Quantum state transformations that are robust to experimental imperfections are important for applications in quantum information science and quantum sensing.
Eric J. Meier, Kinfung Ngan, Dries Sels, Bryce Gadway   +3 more
doaj   +1 more source

Putting reaction-diffusion systems into port-Hamiltonian framework [PDF]

, 2010
Reaction-diffusion systems model the evolution of the constituents distributed in space under the influence of chemical reactions and diffusion [6], [10].
van der Schaft, Abraham, van der Schaft, Abraham; id_orcid, Scherpen, Jacquelien M.A., Seslija, Marko   +3 more
core   +1 more source

Existence of multiple periodic solutions for second-order discrete Hamiltonian systems with partially periodic potentials

Electronic Journal of Differential Equations, 2016
In this article, we use critical point theory to obtain multiple periodic solutions for second-order discrete Hamiltonian systems, when the nonlinearity is partially periodic and its gradient is linearly and sublinearly bounded.
Qin Jiang, Sheng Ma, Zhihua Hu
doaj  

N-Dimensional Lattice Integrable Systems and Their bi-Hamiltonian Structure on the Time Scale Using the R-Matrix Approach

Axioms
A time scale is a special measure chain that can unify continuous and discrete spaces, enabling the construction of integrable equations. In this paper, with the Lax operator generated by the displacement operator, N-dimensional lattice integrable ...
Yong Fang, Xue Sang, Manwai Yuen, Yong Zhang   +3 more
doaj   +1 more source

Discrete mechanics, “time machines” and hybrid systems

EPJ Web of Conferences, 2013
Modifying the discrete mechanics proposed by T.D. Lee, we construct a class of discrete classical Hamiltonian systems, in which time is one of the dynamical variables.
Elze Hans-Thomas
doaj   +1 more source

Optimal Control of Neutral Functional-Differential Inclusions Linear in Velocities

Trends in Computational and Applied Mathematics, 2004
This paper studies optimal control problems for dynamical systems governed by neutral functional-differential inclusions that linearly depend on delayed velocity variables.
B.S. Mordukovich, L. Wang
doaj   +1 more source

Polymer‐Based Probabilistic Bits for Thermodynamic Computing

Advanced Physics Research, EarlyView.
Electropolymerized conjugated polymers function as intrinsic entropy sources for probabilistic computing. Thermally driven conformational fluctuations of pendant triphenylamine groups produce stochastic resistance dynamics that are transduced into voltage‐gated probabilistic bits following logistic transfer functions identical to those of stochastic ...
Stephen H. Foulger, Yuriy Bandera, Igor Luzinov, Travis Wanless, Lubomir Kostal, Vojtech Nádaždy, Petr Janovský, Jarmila Vilčáková   +7 more
wiley   +1 more source

Mitigating the Heat: The Role of AI Technology in Shielding Corporate Environmental Performance From Extreme Temperatures—Difference‐in‐Differences Evidence From Chinese Listed Firms

Business Strategy and the Environment, EarlyView.
ABSTRACT Extreme heat has become a recurring operational challenge that disrupts production, raises energy and maintenance needs, and makes it harder for firms to sustain environmental performance. However, it remains less clear whether AI‐related capability is associated with firms' ability to maintain environmental performance under recurring extreme‐
Shangze Dai, Xinde James Ji, Kai Huang
wiley   +1 more source