2 papers
math.NA2025
Analysis of the Single Reference Coupled Cluster Method for Electronic Structure Calculations: The Discrete Coupled Cluster Equations
Muhammad Hassan, Yvon Maday
Coupled cluster methods are widely regarded as the gold standard of computational quantum chemistry as they are perceived to offer the best compromise between computational cost an…
math.NA2025
On the relation between Galerkin approximations and canonical best-approximations of solutions to some non-linear Schrödinger equations
Muhammad Hassan, Yvon Maday, Yipeng Wang
In this paper, we establish a superconvergence property of Galerkin approximations to some non-linear Schrödinger equations of Gross-Pitaevskii type. More precisely, denoting by $…