This work introduces a minimal toy-field criterion for dynamic non-collapse in a toroidal geometry. A moving convergence center is defined by a time-dependent trajectory, preventing the formation of a stationary pinch-off point. The central result is the non-capture condition: ΩR > vₚ where Ω is the angular velocity of the toroidal center, R is the toroidal radius, and vₚ is the inward collapse (pinch-front) speed. Within the assumptions of the model, collapse does not require direct opposition. Instead, collapse is prevented from completing due to continuous displacement of the convergence center, resulting in sustained phase lag between the collapse front and the moving center. This work is presented as a mathematical framework and does not claim experimental realization. It defines a kinematic condition for non-collapse in a moving toroidal system.
Gerald Ted Dahlberg Jr (Sun,) studied this question.