In this paper, random series oscillatory were examine in matrix valued time series. This series' calculated correlation coefficient between elements. Positive serial correlation coefficient between terms examined relation.
GENÇOĞLU, M. TUNCAY (1997) "The Paper on the Matrix Valued Time Series," Turkish Journal of Mathematics: Vol. 21: No. 5, Article 7. Available at: https://journals.tubitak.gov.tr/math/vol21/iss5/7