True or False ? If the trace and the determinant of a 3 x 3 matrix A are both negative, then the origin is a stable equilibrium solution of the system dx/dt = Ax. Justify your answer.
FULL TEXT ARTICLE Foot and Ankle Injuries in Runners Adam S. Tenforde MD, Amy Yin MD and Kenneth J. Hunt MD Physical Medicine and Rehabilitation Clinics of North America, 2016-02-01, Volume 27, Issue 1, Pages 121-137, Copyright © 2016 Elsevier Inc. Foot and ankle injuries account for nearly one-third of running injuries. Achilles tendinopathy, plantar fasciopathy, and ankle sprains are 3 of the most common types of injuries sustained during training. Other common injuries include other tendinopathies of the foot and ankle, bone stress injuries, nerve conditions including neuromas, and joint disease including osteoarthritis. This review provides an evidence-based framework for the evaluation and optimal management of these conditions to ensure safe return to running participation a