Results 61 to 70 of about 253,152 (270)

An Exponential Formula for Polynomial Vector Fields

open access: yesAdvances in Mathematics, 1997
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
openaire   +2 more sources

Zeroes of complete polynomial vector fields [PDF]

open access: yesProceedings of the American Mathematical Society, 2003
We prove that a complete polynomial vector field on C 2 \mathbb {C}^{2} has at most one zero, and analyze the possible cases of those with exactly one which is not of Poincaré-Dulac type. We also obtain the possible nonzero first jet singularities of the foliation
openaire   +2 more sources

Normalizations with exponentially small remainders for nonautonomous analytic periodic vector fields

open access: yes, 2011
In this paper we deal with analytic nonautonomous vector fields with a periodic time-dependancy, that we study near an equilibrium point. In a first part, we assume that the linearized system is split in two invariant subspaces E0 and E1.
A. Kelley   +11 more
core   +1 more source

A Self‐Healing Magnetoelectric Sensor with Pain Sensing for Underwater Soft Electronics

open access: yesAdvanced Materials, EarlyView.
This study introduces a self‐healing magnetoelectric sensory system designed for amphibious soft electronics. By utilizing liquid‐metal conductors and self‐healing elastomers, the system enables autonomous recovery from mechanical damage. Its multilayered architecture features dual self‐powered proximity and tactile sensing alongside pain sensing in ...
Xuan Zhang   +6 more
wiley   +1 more source

AI–Guided 4D Printing of Carnivorous Plants–Inspired Microneedles for Accelerated Wound Healing

open access: yesAdvanced Materials, EarlyView.
This work presents an artificial intelligence (AI)‐guided 4D‐printed microneedle platform inspired by carnivorous plants for wound healing. A thermo‐responsive shape memory polymer enables body temperature–triggered self‐coiling for autonomous wound closure.
Hyun Lee   +21 more
wiley   +1 more source

On covariant actions for chiral p-forms

open access: yesJournal of High Energy Physics, 2019
We construct a Lorentz and generally covariant, polynomial action for free chiral p-forms, classically equivalent to the Pasti-Sorokin-Tonin (PST) formulation.
Karapet Mkrtchyan
doaj   +1 more source

Stochastic Parameterization Using Compressed Sensing: Application to the Lorenz-96 Atmospheric Model

open access: yesTellus: Series A, Dynamic Meteorology and Oceanography, 2022
Growing set of optimization and regression techniques, based upon sparse representations of signals, to build models from data sets has received widespread attention recently with the advent of compressed sensing.
A. Mukherjee   +3 more
doaj   +1 more source

A UV completion of scalar electrodynamics

open access: yes, 2010
In previous works, we constructed UV-finite and unitary scalar field theories with an infinite spectrum of propagating modes for arbitrary polynomial interactions. In this paper, we introduce infinitely many massive vector fields into a U(1) gauge theory
I.J.R. Aitchison   +6 more
core   +1 more source

Topological Point Defects in SmC* Liquid Crystals Under Mechanical Disturbance

open access: yesAdvanced Materials Interfaces, EarlyView.
Tangetial air jet shear inducess island formation and nucleates topological point defects in uniform SmC films. Island bounded by edge dislocation loops shrink and transform into isolated point defects under continued shear. Mechanical perturbatio provides a controllable route for defect engineering in smectric liquid crystal thin films.
Gunganist Kongklad   +3 more
wiley   +1 more source

On plane polynomial vector fields and the Poincare problem

open access: yesElectronic Journal of Differential Equations, 2002
In this paper we address the Poincare problem, on plane polynomial vector fields, under some conditions on the nature of the singularities of invariant curves.
M'hammed El Kahoui
doaj  

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