SYARAT PERLU DAN SYARAT CUKUP MATRIKS BERSIH PADA ????????????????(ℤ) - Rohmalita Rohmalita; Na'imah Hijriati; Saman Abdurrahman (Mathematics Study Program, Faculty of Mathematics and Natural Sciences, Lambung Mangkurat, 2014)
This paper describes the condition of a net matrix at ????????2 (ℤ) and describes the terms and conditions of sufficient net matrix at ????????2 (ℤ). The result of this study is, ???????? is the 1-net matrix if and only if ???????????????????????? (????????) -???? ???????? (????????) = 0 or -2. Then ???????? is the 0-net matrix if and only if ???????? is the unit matrix, or satisfies one of the equations ???????????? -????????????????-???????? + ???????????????? = ± 1, ???????????? -????????????????-???????? + ???????????????? = ± 1, ????-????????????????????2 + ( ????????-????????) ???????????????? + (????) ???? 2+ (????????) ???????? + (???????????? -????????????????-???????? ± 1) ???? = 0. And the requirement of ???????? is sufficient and ???????? is a 0-net matrix ie if ???????? = ????????????????????00????∈????????2 (ℤ) is a 0-net matrix then ???????? is a 0-net matrix.