Ackerman-like formula for linear time-varying systems

Deals with the eigenvalue assignment for linear time-varying systems to achieve feedback stabilization. For this, we introduce novel eigenvalue concepts. Then, we propose the Ackerman-like formula for linear time-varying systems. It is believed that this technique is the generalized version of the Ackerman formula for linear time-invariant systems. The advantages of the proposed Ackerman-like formula are that it does not require the transformation of the original system into the phase-variable form nor the computation of eigenvalues of the original system.