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Periodicity of Rauzy scheme and substitutional systems
combinatorics on words periodicity Bernside type problems periodicity
2011/8/22
Abstract: In the paper the notion of {\em Rauzy scheme} is introduced. From Rauzy graph Rauzy Scheme can be obtaining by uniting sequence of vertices of ingoing and outgoing degree 1 by arches. This n...
Computing (or not) Quasi-Periodicity Functions of Tilings
Computing (or not) Quasi-Periodicity Functions Tilings
2011/3/2
We know that tilesets that can tile the plane always admit a quasiperiodic tiling [4, 8], yet they hold many uncomputable properties [3, 11, 21, 25].The quasi-periodicity function is one way to measur...
Computing (or not) Quasi-Periodicity Functions of Tilings
Computing Quasi-Periodicity Functions of Tilings
2010/12/28
We know that tilesets that can tile the plane always admit a quasiperiodic tiling [4, 8], yet they hold many uncomputable properties [3, 11, 21, 25].The quasi-periodicity function is one way to measur...
A new periodicity concept for time scales
Periodic time scale periodic function shift operator
2011/1/20
By means of the shift operators we introduce a new periodicity concept on time scales. This new approach will enable researchers to investigate periodicity notion on a large class of time scales whose...
In this note we show that the restriction of the cotangent bundle $\Omega_{\mathbb P}^2$ of the projective plane to a Fermat curve $C$ of degree $d$ in characteristic $p \equiv -1 \mod 2d$ is, up to t...
On the range, local times and periodicity of random walk on an interval
range random walk local times periodicity
2010/12/9
The range, local times, and periodicity of symmetric, weakly asymmetric and asymmetric random walks at the time of exit from a strip with N locations are considered. Several results on asymptotic dist...
PERIODICITY FOR A COOPERATIVE SYSTEM ON TIME SCALES
time scales cooperative system coincidence degree continuation theorem periodic solutions
2008/11/28
In this paper, by using the method of coincidence degree theory, we explore the existence
of periodic solutions for a cooperative ecological model on time scales.
Diel periodicity in both sei whale vocalization rates and the vertical migration of their copepod prey observed from ocean gliders
Diel periodicity both sei whale vocalization rates the vertical migration their copepod prey observed ocean gliders
2014/5/16
The daily activity cycles of marine predators may be dictated in large part by the timing of prey availability. For example, recent studies have observed diel periodicity in baleen whale vocalization ...
Diel periodicity in both sei whale vocalization rates and the vertical migration of their copepod prey observed from ocean gliders
Diel periodicity whale vocalization rates
2014/4/18
The daily activity cycles of marine predators may be dictated in large part by the timing of prey availability.
For example, recent studies have observed diel periodicity in baleen whale vocalization...
Periodicity in a
Periodic solutions toxicants time delays
2007/12/10
With the help of a continuation theorem based on Gaines and Mawhin's coincidence degree, we study the global existence of positive periodic solutions of a "food-limited population model with toxicants...
Periodicity in the accumulation of gelatinous zooplankton during the summer season in the coastal area of Iyo-Nada, Japan
Periodicity in the accumulation gelatinous zooplankton summer season coastal area of Iyo-Nada Japan
2014/4/23
Gelatinous zooplankton collected and quantified daily at the sluice gate of the Ikata Nuclear Power Station along the coast of Iyo-Nada in the Seto Inland Sea were analyzed for the period 1998-2004 in...
Solution formula and time periodicity for the motion of relativistic strings in the Minkowski space R1+n
Equations for the motion of relativistic string general solution formula generalized periodic function characteristic-quadrilateral identity
2018/4/20
In this paper we study the motion of relativistic strings in the Minkowski space R1+n which is governed by n nonlinear partial di甧rential equations of second order. Surprisingly, we obtain a general s...