Exemplos de uso de Difference equations em Inglês e suas traduções para o Português
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Introduction to Difference Equations.
Many questions andmethods concerning differential equations have counterparts for difference equations.
Higher-order linear difference equations and applications.
Difference equations have several applications in economics and are especially common in dynamic general equilibrium models.
These principles are grounded in knowledge involving discrete variables, such as sequences,progressions, difference equations, etc.
The other is on difference equations("for the dynamic economist") and other functional equations. .
I would say a lot easier than what we did in the previous first order homogeneous difference equations, or the exact equations. .
Difference equations can often be solved with techniques very similar to those for solving differential equations. .
Besides, a qualitative study on first order non-linear difference equations around fixed points and periodic orbits was performed.
The difference equations play a key role in shaping problems in which time is measured in discrete intervals, e.g., hour, day, month, year.
For that, we explicitly consider the dispersion of both species through coupled map lattice models, that is,systems of difference equations coupled by dispersal.
O1Â- Introduction to the study of difference equations, nonlinear differential equations and stochastic differential equations. .
His book Vorlesungen über Differenzenrechnung(1924, reprinted 1954) was the first book on complex function solutions of difference equations.
The difference equations are useful when working with discrete dynamic systems, in situations where the quantities change within each time interval.
It was used the trapezoidal integration method to convert the differential equations into difference equations. this process generates a non-linear algebraic set.
The difference equations(or discrete equations) play a key role in shaping problems in which time is measured at discrete intervals, e.g., day, month, year.
The Mathematical Methods of Economics(or an equivalent mathematical methods course) should have covered linear algebra; functions of several variables; unconstrained andconstrained optimization; difference equations and differential equations. .
We consider some classical models from the point of view of the difference equations, with emphasis on the study of the existence of an equilibrium as well the special conditions for its stability of solutions.
Difference equations are similar to a differential equations, but replace differentiation by taking the difference between adjacent terms; they can be used to approximate differential equations or(more often) studied in their own right.
Thus, this study aimed to assess the population dynamics of d. saccharalis adults in different sugarcane regions and its relationship with meteorological factors,as well as to establish a forecasting model based on degree days and difference equations.
The aim of this work is to study the first-order difference equations, focusing on theoretical aspects, asymptotic behavior of solutions throughout analytical techniques(stability theorems) and graphical techniques cobweb diagrams.
Operations Research disciplines represents significant interest in understanding andcontrolling manufacturing processes, leading to interdisciplinary research to study the control of discrete-event systems, which cannot be expressed by habitual differential or difference equations;
In this work the z-transform is used to solve difference equations, aiming discrete mathematical models, with the main objective to develop a courseware in portuguese, since most of the references are in english.
There are many concepts in continuous mathematics which have discrete versions, such as discrete calculus, discrete probability distributions, discrete Fourier transforms, discrete geometry, discrete logarithms, discrete differential geometry, discrete exterior calculus,discrete Morse theory, difference equations, discrete dynamical systems, and discrete vector measures.
A polynomial combination is performed in order to condense all difference equations in a single transfer function, which, in turn, will suffer a sigmoidal adjustment, seeking a better adequacy between the amplitudes of the original and processed signals.
Some of the important applications of FFT includes, Fast large integer and polynomial multiplication Efficient matrix-vector multiplication for Toeplitz, circulant and other structured matrices Filtering algorithms(see overlap-add and overlap-save methods) Fast algorithms for discrete cosine or sine transforms(example, Fast DCT used for JPEG, MP3/MPEG encoding)Fast Chebyshev approximation Fast discrete Hartley transform Solving difference equations Computation of isotopic distributions.
Including behavior of the system variables typically described by differential or difference equations in the time domains; by Laplace, Z and Fourier transforms in the transform(frequency) domain; there are recognized methods and mathematical theories to study stability and optimality.
The aim of this work is to study the higher-order linear difference equations, focusing on the theoretical aspects, on the methods used to determine the solutions of these equations and also on the analysis of the stability of 2nd-order difference equations with constants coefficients.
Considering the mathematical modelling as a teaching strategy,we approach the concept of difference equations because they are widely used in the formulation of mathematical models of biological phenomena, which are continuous processes, but are analyzed under the discrete point of view, as well as the approach of the activities developped by the students.
The present work aims to show some aspects of linear differences equations with constant coefficients, some of their applications and some ways of solving them.