Results 121 to 130 of about 82,530 (235)
Electronic Journal of Differential Equations, 2015 We introduce a nonlinear degenerate parabolic equation containing a nonlocal term. The equation serves as a replicator dynamics model where the set of strategies is a continuum.
Vassilis G. Papanicolaou +1 more
doaj
Nonlinear modes of the tensor Dirac equation and CPT violation [PDF]
Recently, it has been shown that Dirac's bispinor equation can be expressed, in an equivalent tensor form, as a constrained Yang-Mills equation in the limit of an infinitely large coupling constant.
Morris, Randall D., Reifler, Frank J.
core +1 more source
Existence Analysis of a Three‐Species Memristor Drift‐Diffusion System Coupled to Electric Networks
Mathematical Methods in the Applied Sciences, EarlyView.ABSTRACT The existence of global weak solutions to a partial‐differential‐algebraic system is proved. The system consists of the drift‐diffusion equations for the electron, hole, and oxide vacancy densities in a memristor device, the Poisson equation for the electric potential, and the differential‐algebraic equations for an electric network.
Ansgar Jüngel, Tuấn Tùng Nguyến
wiley +1 more source
Interaction Between Vortex‐Induced Vibrations and Base Vibrations in Piezoelectric Harvesters
International Journal of Mechanical System Dynamics, EarlyView.ABSTRACT In the present era, powering sensors using green energy is a significant challenge. One promising solution for the power supply of small sensors relies on piezoelectric energy harvesters excited by vortex‐induced vibrations (VIVs) generated by wind.
Michele Tonan +3 more
wiley +1 more source
Fully Quantum Perturbative Description of Correlated Stokes–Anti‐Stokes Scattering
physica status solidi (b), EarlyView.The generation of Stokes‐anti‐Stokes (SaS) photon pairs with quantum correlations, like entanglement, has been developing recently, but a proper theoretical ground was missing. A fully quantum perturbative theory is provided to describe the four‐wave mixing contribution to the correlated SaS scattering, in which both matter and electromagnetic field ...
Raul Corrêa +3 more
wiley +1 more source
Subgroups of the Group of Generalized Lorentz Transformations and Their Geometric Invariants
Symmetry, Integrability and Geometry: Methods and Applications, 2005 It is shown that the group of generalized Lorentz transformations serves as relativistic symmetry group of a flat Finslerian event space. Being the generalization of Minkowski space, the Finslerian event space arises from the spontaneous breaking of ...
George Bogoslovsky
doaj
Fuzzy postprocessing of seasonal climate forecasts for semiarid river basins
Quarterly Journal of the Royal Meteorological Society, EarlyView.Meteorological forecasts from AI‐based fuzzy rule‐based system (FRB) are compared to linear scaling (LS) and quantile mapping (QM). Seasonal forecasts from the Copernicus Climate Change Service (C3S) are considered. Results show that the highest skill is achieved for the FRB approach.
Dariana Isamel Avila‐Velasquez +2 more
wiley +1 more source
IEEJ Transactions on Electrical and Electronic Engineering, EarlyView.Greenhouse cultivation offers the advantage of controlled growth conditions, leading to enhanced crop productivity and quality. However, maintaining these optimal conditions requires substantial energy, resulting in increased greenhouse gas emissions and operational costs. Integrating local renewable energy sources, particularly photovoltaic (PV) solar
Akihiro Funaki, Jorge Solis
wiley +1 more source
One dimensional Dirac equation with quadratic nonlinearities
Discrete & Continuous Dynamical Systems - A, 2005 The author considers the \(1\)-dimensional Cauchy problem of Dirac equations with quadratic nonlinear term: \[ (i\gamma^0 \partial_t +i \gamma^1 \partial_x) u+mu=F(u), \quad u(0,x)=\phi(x), \leqno (\text{NLD})_m \] where \(m\) is a mass and nonnegative, \(u(t,x)\), \(t,x \in \mathbb{R}\), is an unknown function with values in \(\mathbb{C}^2\), \(\gamma^
openaire +2 more sources
Addressing ecological challenges from a quantum computing perspective
Methods in Ecology and Evolution, EarlyView.Abstract With increased access to data and the advent of computers, the use of statistical tools and numerical simulations is becoming commonplace for ecologists. These approaches help improve our understanding of ecological phenomena and their underlying mechanisms in increasingly complex environments.
Maxime Clenet +2 more
wiley +1 more source