A handwritten notes of Ring (Algebra) by Prof. M. Dabeer Mughal (Federal Directorate of Education, Islamabad, PAKISTAN). Best to prepare a “Rings & Vector Spaces” section of Algebra paper in MSc (Mathematics).
CONTENTS OR SUMMARY:
Rings, commutative ring, ring with unity (identity), examples
Consequences from the definition
Unit element of ring
Division ring or skew field, field, zero divisor
Integral domain
Characteristic of ring, Boolean ring
Sub-ring and related theorem
Centre of ring and related theorem
Ring homomorphism
Isomorphism, kernel of ϕ and related theorems
Ideal, left ideal
Right ideal, two sided ideal, examples and theorems
Principal ideal, principal ideal ring and related theorem
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