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# Communications in Mathematical Sciences

## Volume 19 (2021)

### Number 6

### Contents

The Cauchy problem for a non strictly hyperbolic $3 \times 3$ system of conservation laws arising in polymer flooding

pp. 1491-1507

A Cahn–Hilliard model with a proliferation term for the proliferative-to-invasive transition of hypoxic glioma cells

pp. 1509-1532

On the sedimentation of a droplet in Stokes flow

pp. 1627-1654

Dynamics of the three dimensional viscous primitive equations of large-scale moist atmosphere

pp. 1673-1701

A simple real-space scheme for periodic Dirac operators

pp. 1735-1750

### Fast Communications

The singularities for a periodic transport equation

pp. 1751-1760