Lower bound of Lyapunov function -The signal energy Lyapunov function is clearly bounded below. For binary or bipolar,the matrix coefficients define the attainable bound:L≥-∑∑m,l i -The attainable upper bound is the negative of this expression. 33 Lower bound of Lyapunov function The signal energy Lyapunov function is clearly bounded below. For binary or bipolar,the matrix coefficients define the attainable bound: The attainable upper bound is the negative of this expression.  − i j L mij