Abstract: Two types of crystalline approximants of the decagonal phase have been found in the Al-Cu-Cr system by electron microscopy, in specimens annealed at 1050°C. The structures are orthorhombic ...

Self-similar approximants and perturbation theory constitute a rigorous framework for tackling problems wherein conventional power series expansions fail to converge, or yield only limited insight. By ...

The Asymptotic Numerical Method (ANM) is a family of algorithms for path following problems, where each step is based on the computation of truncated vector series [1]. The Vector Padé approximants ...