Issue No. 12 - December (1973 vol. 22)
B. Vilfan , Department of Electronics, Jozef Stefan Institute
Givone and Roesser  state a "two-dimensional" analog of the Cayley-Hamilton theorem: every square matrix satisfies its characteristic equation. Readers may be interested in a proof different from the one given in .
B. Vilfan, "Another Proof of the Two-Dimensional Cayley-Hamilton Theorem," in IEEE Transactions on Computers, vol. 22, no. , pp. 1140, 1973.