ABSTRACT

Mathematical Modelling with Differential Equations aims to introduce various strategies for modelling systems using differential equations. Some of these methodologies are elementary and quite direct to comprehend and apply while others are complex in nature and require thoughtful, deep contemplation. Many topics discussed in the chapter do not appear in any of the standard textbooks and this provides users an opportunity to consider a more general set of interesting systems that can be modelled. For example, the book investigates the evolution of a "toy universe," discusses why "alternate futures" exists in classical physics, constructs approximate solutions to the famous Thomas—Fermi equation using only algebra and elementary calculus, and examines the importance of "truly nonlinear" and oscillating systems.

Features

  • Introduces, defines, and illustrates the concept of "dynamic consistency" as the foundation of modelling.
  • Can be used as the basis of an upper-level undergraduate course on general procedures for mathematical modelling using differential equations.
  • Discusses the issue of dimensional analysis and continually demonstrates its value for both the construction and analysis of mathematical modelling.

chapter Chapter 0|32 pages

Preliminaries

chapter Chapter 1|10 pages

What Is the N ?

chapter Chapter 2|16 pages

Damping/Dissipative Forces

chapter Chapter 3|12 pages

The Thomas-Fermi Equation

chapter Chapter 4|20 pages

Single Population Growth Models

chapter Chapter 5|16 pages

1 + 2 + 3 + 4 + 5 + ⋯ = − ( 1 / 2 )

chapter Chapter 6|20 pages

A Truly Nonlinear Oscillator

chapter Chapter 7|34 pages

Discretization of Differential Equations

chapter Chapter 8|20 pages

SIR Models for Disease Spread

chapter Chapter 9|12 pages

Dieting Model

chapter Chapter 10|10 pages

Alternate Futures

chapter Chapter 11|16 pages

Toy Model of the Universe

chapter Chapter 12|20 pages

Diffusion and Heat Equations