Dynamical systems is a branch of mathematics that studies the behavior of complex systems over time. These systems can be described by equations that represent how their variables change and evolve in relation to each other. Dynamical systems research investigates the patterns, stability, and predictability of these systems, and explores concepts such as chaos, bifurcations, attractors, and phase transitions. This area of study has applications in a wide range of fields, including physics, biology, economics, engineering, and climate science.