This is a survey paper on the second largest eigenvalue λ₂ of the adjacency matrix of a graph. Among the topics presented are the graphs with small λ₂, bounds for λ₂, algebraic connectivity, graphs ...

Sayan Chakraborty, Arnab Bhattacharjee, Taps Maiti, Structural Factorization of Latent Adjacency Matrix, with an application to Auto Industry Networks, Sankhyā: The Indian Journal of Statistics, ...

Hangzhou Lu Xiang Technology Co., Ltd. applied for a patent titled "Interactive Question and Answer Method and System Based on Artificial Intelligence" in May 2025, which was publicly disclosed by the ...