2 papers
math.GM2021
Eliminating oscillation in partial sum approximation of periodic function
Shi-Lin Li, Yuan-Yuan Liu, Wen-Du Li +1
If we cannot obtain all terms of a series, or if we cannot sum up a series, we have to turn to the partial sum approximation which approximate a function by the first several terms…
cond-mat.quant-gas2020
Exactly solvable Gross-Pitaevskii type equations
Yuan-Yuan Liu, Wen-Du Li, Wu-Sheng Dai
TWe suggest a method to construct exactly solvable Gross-Pitaevskii type equations, especially the variable-coefficient high-order Gross-Pitaevskii type equations. We show that the…