On estimations of the lower and upper bounds for the spectral and nuclear norm of a tensor. Li established neat bounds for the two norms based on regular tensor partitions. and proposed a conjecture for the same bounds to be hold based on general tensor partitions [Z. Li. https://bookmarksaifi.com/story19588388/physical-inactivity-non-communicable-diseases-and-national-fitness-plan-of-china-for-physical-activity