Results 21 to 30 of about 83,200 (280)

Abel's Equation and Regular Growth: Variations on a Theme by Abel [PDF]

open access: yesExperimental Mathematics, 1998
Following a 70-year old suggestion of Paul Levy, a condition is formulated for the regularity of growth of real functions. The condition, which is quite explicit, makes use of the iterates of the function and solutions of Abel's functional equation, and is well adapted to a computer testing.
openaire   +2 more sources

Planar nonautonomous polynomial equations V. The Abel equation [PDF]

open access: yesOpuscula Mathematica, 2013
We give a full description of the dynamics of the Abel equation \(z'=z^3+f(t)\) for some special complex valued \(f\). We also prove the existence of at least three periodic solutions for equations of the form \(z'=z^n+f(t)\) for odd \(n \geq 5\).
Paweł Wilczyński
doaj   +1 more source

Homotopy analysis method for solving Abel differential equation of fractional order

open access: yesOpen Physics, 2013
Jafari Hossein   +3 more
doaj   +2 more sources

Periodic solutions with nonconstant sign in Abel equations of the second kind [PDF]

open access: yes, 2011
The study of periodic solutions with constant sign in the Abel equation of the second kind can be made through the equation of the first kind. This is because the situation is equivalent under the transformation $x\mapsto x^{-1}$, and there are many ...
Alvarez   +19 more
core   +5 more sources

Approximate solution of Abel integral equation in Daubechies wavelet basis

open access: yesCubo, 2021
This paper presents a new computational method for solving Abel integral equation (both first kind and second kind). The numerical scheme is based on approximations in Daubechies wavelet basis. The properties of Daubechies scale functions are employed to
Jyotirmoy Mouley   +2 more
doaj   +1 more source

Integrable equations with Ermakov-Pinney nonlinearities and Chiellini damping [PDF]

open access: yes, 2015
We introduce a special type of dissipative Ermakov-Pinney equations of the form v_{\zeta \zeta}+g(v)v_{\zeta}+h(v)=0, where h(v)=h_0(v)+cv^{-3} and the nonlinear dissipation g(v) is based on the corresponding Chiellini integrable Abel equation.
Mancas, Stefan C., Rosu, Haret C.
core   +3 more sources

On the problem with generalized operators of fractional differentiation for mixed type equation with two degeneracy lines

open access: yesVestnik Samarskogo Gosudarstvennogo Tehničeskogo Universiteta. Seriâ: Fiziko-Matematičeskie Nauki, 2013
The nonlocal problem for mixed-type equation with perpendicular lines of degeneracy is investigated for the case when the Dirichlet condition is given on the elliptic boundary, and the generalized derivatives of the solution values on the characteristics
Oleg Aleksandrovich Repin   +1 more
doaj   +1 more source

Cubic Systems and Abel Equations

open access: yesJournal of Differential Equations, 1998
Consider autonomous differential systems of the type \[ dx/dt = \lambda x + y + P_2 (x,y)+ P_3 (x,y), \qquad dy/dt =-x+ \lambda y + Q_2 (x,y)+ Q_3 (x,y),\tag \(*\) \] where \(P_i (x,y)\) and \(Q_i (x,y)\), \(i=2,3\), are homogeneous polynomials of degree \(i\).
Devlin, J., Lloyd, N.G., Pearson, J.M.
openaire   +1 more source

Stable Synapse‐Like Memory Switching in N‐Heterocyclic Carbene Monolayers

open access: yesAngewandte Chemie, EarlyView.
We report a redox‐active N‐heterocyclic carbene (NHC) monolayer showing synapse‐like behavior via proton‐coupled electron transfer (PCET). These quinone‐functionalized NHCs form dense self‐assembled monolayers and highly stable molecular junctions. Bias‐driven PCET switches quinone/hydroquinone states, producing reversible hysteresis and spike‐timing ...
Ankita Das   +11 more
wiley   +2 more sources

Black branes with cosmological constant

open access: yesJournal of High Energy Physics, 2022
We study neutral black branes with flat and curved worldvolumes in the presence of a negative cosmological constant. We reduce the equations governing the dynamics of such objects to one second-order ODE and perform various asymptotic expansions of the ...
Rhucha Deshpande, Oleg Lunin
doaj   +1 more source

Home - About - Disclaimer - Privacy