A familiar and natural decomposition of square matrices leads to the construction of a Pfaffian with the same value as the determinant of the square matrix.
Gravier et al. established bounds on the size of a minimal totally dominant subset for graphs Pk□Pm. This paper offers an alternative calculation, based on the
Natural kaolin (NK) and magnetite-modified kaolin (MK) prepared by co-precipitation were used as adsorbents to remove phosphate from aqueous solution. The mater