13. Domain of Dependence and Range of Influence
The chapter delves into the various domains of influence and dependence pertaining to elliptic, parabolic, and hyperbolic partial differential equations. It further categorizes physical problems into equilibrium, propagation, and Eigen problems, highlighting the significance of boundary conditions in solving these equations. A pivotal technique discussed is the finite difference method, which approximates differential equations via truncated Taylor series, providing insights into analytical versus numerical solutions.
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What we have learnt
- Elliptic partial differential equations have a solution domain that encompasses both the domain of dependence and the range of influence.
- Physical problems can be classified into three categories: equilibrium, propagation, and Eigen problems, each with unique characteristics and solution approaches.
- The finite difference method is a key numerical technique for approximating solutions to differential equations, often utilized when analytical solutions are impractical.
Key Concepts
- -- Elliptic Partial Differential Equation
- A type of PDE where the solution domain is both the domain of dependence and the range of influence for every point.
- -- Finite Difference Method
- A numerical technique used to approximate solutions of differential equations by replacing continuous information with discrete values using Taylor series.
- -- Eigen Problems
- Problems in which the solution exists only for specific values of parameters known as Eigen values.
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