Results 31 to 40 of about 1,445,125 (331)

Non-existence of periodic solutions in fractional-order dynamical systems and a remarkable difference between integer and fractional-order derivatives of periodic functions

, 2011
Using the Mellin transform approach, it is shown that, in contrast with integer-order derivatives, the fractional-order derivative of a periodic function cannot be a function with the same period.
Kaslik, Eva, Sivasundaram, Seenith
core   +1 more source

From the Fibonacci Icosagrid to E₈ (Part I): The Fibonacci Icosagrid, an H₃ Quasicrystal

Crystals
This paper introduces a new kind of quasicrystal by Fibonacci-spacing a multigrid of a certain symmetry, like H2, H3, T3, etc. Multigrids of a certain symmetry can be used to generate quasicrystals, but multigrid vertices are not a quasicrystal due to ...
Fang Fang, Klee Irwin
doaj   +1 more source

A microquasar classification from a disk instability perspective [PDF]

, 2010
The spectacular variability of microquasars has led to a long string of efforts in order to classify their observed behaviors in a few states. The progress made in the understanding of the Quasi-Periodic Oscillations observed in these objects now makes ...
Belloni, Belloni, Casella, Casse, Caunt, Dieters, Eikenberry, Fender, Gogus, Homan, Homan, J. Rodriguez, Kato, Lovelace, M. Tagger, Meheut, Mikles, Mirabel, Morgan, Munoz-Darias, Nowak, P. Varniere, Paczyńsky, Prat, Remillard, Remillard, Revnivtsev, Rodriguez, Rodriguez, Rodriguez, Rodriguez, Sobczak, Soleri, Tagger, Tagger, Tagger, Tagger, Van der Klis, Varniere, Varniere, Wagoner, Wijnands   +41 more
core   +5 more sources

Periodic solutions of third order differential equations

Journal of Innovative Applied Mathematics and Computational Sciences
In this paper, we study the existence of periodic solutions for the following piecewise third-order differential equation: $$ \dddot{x}+\dot{x}-\varepsilon\sum\limits_{i=1}^{2}c_i|x|^i=0, $$ with $\varepsilon$ a real parameter sufficiently small, $c_1$
Nabil Rezaiki, Amel Boulfoul
doaj   +1 more source

Positive Periodic Solutions for First-Order Neutral Functional Differential Equations with Periodic Delays

Abstract and Applied Analysis, 2012
In this paper, two classes of first-order neutral functional differential equations with periodic delays are considered. Some results on the existence of positive periodic solutions for the equations are obtained by using the Krasnoselskii fixed point ...
Zeqing Liu, Xin Li, Shin Min Kang, Young Chel Kwun   +3 more
doaj   +1 more source

Periodic solutions of forced Kirchhoff equations

, 2007
We consider Kirchhoff equations for vibrating bodies in any dimension in presence of a time-periodic external forcing with period 2pi/omega and amplitude epsilon, both for Dirichlet and for space-periodic boundary conditions.
Baldi, Pietro
core   +3 more sources

Periodic Quasiregular Mappings of Finite Order

Revista Matemática Iberoamericana, 2003
The authors construct a periodic quasiregular function of any finite order \rho , 1\leq\rho < \infty . This completes earlier work of O. Martio and U. Srebro.
Drasin, David, Sastry, Swati
openaire   +3 more sources

Multiple ETS family transcription factors bind mutant p53 via distinct interaction regions

FEBS Letters, EarlyView.
Mutant p53 gain‐of‐function is thought to be mediated by interaction with other transcription factors. We identify multiple ETS transcription factors that can bind mutant p53 and found that this interaction can be promoted by a PXXPP motif. ETS proteins that strongly bound mutant p53 were upregulated in ovarian cancer compared to ETS proteins that ...
Stephanie A. Metcalf, Nicholas F. Downing, Kaitlyn M. Mills, Samuel C. Metcalfe, Alexander E. Kritzer, Lindsey D. Mayo, Peter C. Hollenhorst   +6 more
wiley   +1 more source

Stability Analysis of Fractional-Order Periodic Piecewise Nonlinear Systems

IEEE Access, 2023
This paper investigates the stability problem of fractional-order periodic piecewise nonlinear systems. As a preparation, the existence and uniqueness of solutions of the system are derived under the Lipschitz condition and expressed in an equivalent ...
Qingqing Li, Ticao Jiao, Guangming Zhuang, Housheng Zhang, Xuening Xing   +4 more
doaj   +1 more source

Periodic review and continuous ordering [PDF]

European Journal of Operational Research, 2015
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Dennis Prak, Ruud Teunter, Jan Riezebos
openaire   +6 more sources