Fluid dynamics, a cornerstone of applied mathematics and engineering, investigates the behaviour of fluids in motion. Within this broad field, active scalar equations play a pivotal role by ...

Active matter comprises systems in which individual components convert stored or ambient energy into mechanical work, leading to self-driven phenomena and spontaneous organisation. This area of ...

Systems of motile interacting units (active matter) exhibit fascinating emergent phenomena such as self-organization and directed motion at large scales. Familiar examples are flocks of birds, schools ...