Rings, integral domains, ideals, Modules, Radical theory-- Algebra-- Mathematics 64 Modules (Algebra) 15 Rings (Algebra) 8 Mathematics 5 Modulation 5 Geometry, Algebraic 4 Algebra 3 Commutative algebra 3 Digital communications 3 Dissertations, Academic (Ph.D) 3 Modulation (Electronics) 3 Optical communications 3 Amplitude modulation 2 Commutative rings 2 Fuzzy sets 2 Injective modules (Algebra) 2 Local rings 2 Modules 2 Modules-Algebra 2 Projective modules (Algebra) 2 Representations of groups 2 Rings and modules 2 Thesis (Ph.D)-Mathematics 2 Wavelets (Mathematics) 2 Amplification 1 Amplitude Modulation 1 Associative rings 1 Automobiles 1 Automotive sensors 1 Basic Principles of Modulation and Demodulation 1