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## Blogroll

## Top Posts & Pages

- A singular module is a quotient of a module by an essential submodule
- The singular submodule
- Left ideals generated by idempotents
- Dedekind-finite rings
- Finite subgroups of the multiplicative group of a division ring
- Maximal and prime ideals of a polynomial ring over a PID (1)
- Center of dihedral groups
- Rings satisfying x^4 = x are commutative
- Graded algebras; basic definitions and examples
- Maximal and prime ideals of a polynomial ring over a PID (2)

## Categories

- Elementary Algebra; Problems & Solutions
- Noncommutative Ring Theory Notes
- Characters of Finite Groups
- Direct and Inverse Limit
- Division Rings
- Examples & Counter-Examples
- Frobenius Algebras
- Gelfand-Kirillov Dimension
- Graded Algebras & Modules
- Group Algebras
- Jacobson Radical
- Primitive Rings
- Quotient Rings
- Representations of Finite Groups
- Ring of Endomorphisms
- Simple Rings
- von Neumann Regular rings
- Weyl Algebras

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