Higher-derivative field theories extend conventional frameworks by incorporating terms with higher-order derivatives in their equations of motion. This formulation not only enriches the mathematical ...

The derivative nonlinear Schröndinger equation (DNLS) $iq_t = q_{xx} \pm (q^\ast q^2)_x, & q = q(x, t), i = \sqrt{-1}, q^\ast(z) = \overline{q(z)}$, was first ...

Microsoft Excel doesn't have the ability to generate a derivative equation from a given formula, but you can still use the program to calculate values for both a formula and its derivative and plot ...