Alan J. Hoffman, The Change in the Least Eigenvalue of the Adjacency Matrix of a Graph Under Imbedding, SIAM Journal on Applied Mathematics, Vol. 17, No. 4 (Jul., 1969), pp. 664-671 ...

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 ...