Volume 35 • Number 2 • 2012   • Characterizations of Term-Rank Preservers over Boolean Matrices Kyung-Tae Kang and Seok-Zun Song Abstract. In this paper we obtain some characterizations of linear operators that preserve term rank of Boolean matrices. With certain conditions, we prove that for a linear operator $T$ on the Boolean matrix space, $T$ preserves term rank if and only if $T$ preserves two consecutive term ranks if and only if $T$ strongly preserves just one term rank. 2010 Mathematics Subject Classification: 15A86, 15A03, 15A33. Full text: PDF