摘要

As one of the fundamental operations, matrix multiplication plays a significant role in mathematics, computer science and many other science fields. In Williams' research of studying matrix multiplication problem, she put emphasis on studying the even tensor powers of Coppersmith-Winograd approach, and then obtained improved upper bound for the matrix multiplication exponent. In fact, the program for calculating the so-called even tensor power is a constrained optimization problem with complicated constraints. In this paper, we focus on the 4th tensor power problem of matrix multiplication. After converting this practical problem, we design a dominance-based constrained optimization evolutionary algorithm. Empirical results show that this algorithm can effectively solve the 4-th tensor power problem. What is more, the feasible solution obtained by this algorithm is better than the current known solution of the problem.

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