... J. Xu, “New stability conditions for neural networks with constant and variable delays,” Chaos, Solitons and Fractals, vol. 26, no. 5, pp. 1391–1398, 2005.[29] Q. Song and J. Cao, Stability analysis ... respectively; τij(t )and ji(t)correspond to the transmission delays and satisfy 0≤ τij(t) ≤ τij and 0 ≤ σji(t) ≤ σji(τij and σjiare constants); ai and bjare positive constants, and denote ... jth neurons from FV and the ith neurons from FUat timet and in space x, respectively; αi and βjare constants, and denote the external inputson the ith neurons from FU and the jth neurons...