Conjugacy Classes of the Group 27: G2(2)

2024 KIBU Authors Lucy Chikamai Shem Aywa VIEW ON PUBLISHER SITE Abstract The group 27: G2(2), a maximal subgroup of the automorphism group of the Fischer group Fi22, is a semi-direct product of an elementary abelian group of order 27 and the exceptional group G2(2). This study aims to comprehensively determine and analyze the conjugacy […]

Circularity and Polygonal Structure of Numerical Ranges for Non-Negative Matrices

2024 KIBU Authors Shem Away Lucy Walingo Chikamai VIEW ON PUBLISHER SITE Abstract This study investigates the circularity and polygonal structure of numerical ranges for non-negative matrices. We provide a comprehensive characterization of non-negative matrices with circular numerical ranges and derive conditions for polygonal numerical ranges. Our main results show that a non-negative matrix has […]

Conjugacy Classes of the Group Extension 27: G2(2)

2024 KIBU Authors Lucy Chikamai Vincent Marani VIEW ON PUBLISHER SITE Abstract This study investigates the conjugacy class structure of the group extension 27: G2(2), a maximal subgroup of both the symplectic group Sp8(2) and the automorphism group of the sporadic Fischer group Fi22. Using the Fischer-Clifford matrix technique and computational methods, we determine and […]

Heavy metal contamination at dumpsites at Eldoret, Kenya, in the Lake Victoria Basin

2018 KIBU Authors Donald Siamba Martha Konje VIEW ON PUBLISHER SITE Abstract This study assessed the heavy metals concentrations in municipal solid wastes at Eldoret Mwenderi dumpsites located at the shores of river Sosiani within the Lake Victoria Basin, Kenya. Concentrations of the three heavy metals analysed (lead, arsenic and cadmium) in water and leachate […]