Results 41 to 50 of about 33,047,881 (379)

Lower bounds for blow up time of the p-Laplacian equation with damping term [PDF]

open access: yesMathematica Moravica, 2021
In this work deals with the p-Laplacian wave equation with damping terms in a bounded domain. Under suitable conditions, we obtain a lower bounds for the blow up time.
Dınç Yavuz   +2 more
doaj   +1 more source

Short Term Forecast of COVID-19 cases in Japan Using Time Series Analysis Models

open access: yesJournal of Computing Research and Innovation, 2022
The new strain of coronavirus (COVID-19) was found to have started in Wuhan, China in late December 2019. The virus has spread to countries all over the world including Japan.
Nor Azriani Mohamad Nor   +4 more
doaj   +3 more sources

Synchronizations of fuzzy cellular neural networks with proportional time-delay

open access: yesAIMS Mathematics, 2021
In this article, finite-time and fixed-time synchronizations (FFTS) of fuzzy cellular neural networks (FCNNs) with interaction and proportional delay terms have been investigated.
Ankit Kumar   +5 more
doaj   +1 more source

Short-Term Load Forecasting: The Similar Shape Functional Time Series Predictor [PDF]

open access: yes, 2012
We introduce a novel functional time series methodology for short-term load forecasting. The prediction is performed by means of a weighted average of past daily load segments, the shape of which is similar to the expected shape of the load segment to be
Paparoditis, Efstathios   +1 more
core   +1 more source

Timed Term Rewrite Systems

open access: yesElectronic Notes in Theoretical Computer Science, 2002
AbstractWe propose a new class of rewrite systems that are conservative extensions of first-order conditional term rewrite systems together with time features such as clocks, signals, timed terms, timed atoms and timed rules. We define first timed term rewrite systems by their syntax and illustrate them through some examples.
Jérémie Blanc, Rachid Echahed
openaire   +2 more sources

Time-varying cosmological term [PDF]

open access: yesJournal of Physics: Conference Series, 2015
We present the case of time-varying cosmological term using the Lagrangian formalism characterized by a scalar field with standard kinetic energy and arbitrary potential V(). This model is applied to Friedmann-Robertson-Walker (FRW)cosmology. Exact solutions of the field equations are obtained by a special ansats to solve the Einstein-Klein-Gordon ...
M. D'oleire   +2 more
openaire   +1 more source

Information measure for financial time series: quantifying short-term market heterogeneity [PDF]

open access: yes, 2018
A well-interpretable measure of information has been recently proposed based on a partition obtained by intersecting a random sequence with its moving average.
Carbone, Anna, Ponta, Linda
core   +2 more sources

Homogenization in elastodynamics with force term depending on time

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 2000
We extend the study on the homogenization problem for an elastic material containing a distributed array of gas bubbles to the case when the body force depends on time.
Ping Wang
doaj   +1 more source

Time continuum and true long-term ecology: from theory to practice

open access: yesFrontiers in Ecology and Evolution, 2014
The need for long-term studies to understand ecological dynamics is widely recognised but has not been satisfactorily addressed to date. The development of long-term (LT) observatories has aimed to improve the situation, but the main handicaps are that ...
Valentí eRull
doaj   +1 more source

Novel robust time series analysis for long-term and short-term prediction

open access: yesScientific Reports, 2021
Nonlinear phenomena are universal in ecology. However, their inference and prediction are generally difficult because of autocorrelation and outliers.
Hiroshi Okamura   +3 more
doaj   +1 more source

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