Topics

• Category theory 1
• Combinatorics 1
• Noncommutative Algebra 2
• Representation Theory 6
• Subgroup Lattices 4
• Uncategorized 4

Category theory

• Feb 18 2017 » Distributive Laws

Combinatorics

• Nov 15 2014 » Partitions and Posets

Noncommutative Algebra

• Feb 17 2016 » The Weyl Algebra and $\mathfrak{sl}_2$
• Mar 03 2016 » Noncommutative Algebras in Sage

Representation Theory

• Jan 20 2015 » Representation Theory in Sage - Basics
• Jan 24 2015 » Direct Sums and Tensor Products
• Jan 26 2015 » Irreducible and Indecomposable Representations
• Feb 02 2015 » Decomposing Representations
• Feb 15 2015 » The Group Ring and the Regular Representation
• Mar 20 2015 » Character Theory Basics

Subgroup Lattices

• Dec 15 2014 » Lattice of Subgroups
• Dec 17 2014 » Lattice of Subgroups II - Coloring Vertices
• Dec 27 2014 » Lattice of Subgroups III - Coloring Edges
• Jan 17 2015 » Subgroup Explorer

Uncategorized

• Nov 14 2014 » Hullo
• Nov 19 2014 » The Argument Principle
• Dec 25 2014 » Holiday Harmonograph
• Mar 12 2015 » Animated GIFs