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 ...

We give stability and consistency results for higher order Grünwald-type formulae used in the approximation of solutions to fractional-in-space partial differential equations. We use a new ...

The journal publishes original papers in all areas of pure and applied mathematics. Publisher Information Consists of six departments and provides education in the fields of physics, mathematics, ...