Variational Analysis
Nonlinear equations are mathematical expressions where the relationship between the variables is not a straight line, meaning they cannot be written in the form of $y = mx + b$. These equations can include terms that are quadratic, cubic, exponential, logarithmic, or involve products of variables. They play a crucial role in various fields, particularly in optimization and fixed point theory, where finding solutions often requires more complex methods than those used for linear equations.
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