Dual Variational Methods in Optimal Control Theory

Consider a semilinear control system of the form (1.1) x ˙ ( t )   =   Σ i = 1 m g i ( x ( t ) ) u i ( t ) ,   x ( 0 )   = 0   ∈   ℝ d , https://s3-euw1-ap-pe-df-pch-content-public-p.s3.eu-west-1.amazonaws.com/9780203745625/282a7636-99bc-47fe-9900-0c0a6434c0ca/content/eq2614.tif"/>