Contents Online

# Communications in Mathematical Sciences

## Volume 18 (2020)

### Number 2

### Contents

Optimal critical mass for the two-dimensional Keller–Segel model with rotational flux terms

pp. 379-394

A class of efficient spectral methods and error analysis for nonlinear Hamiltonian systems

pp. 395-428

Nonlinear diffusion equations with degenerate fast-decay mobility by coordinate transformation

pp. 459-486