Date of Award
Master of Science (MS)
Mathematics and Statistics
John R. Stevens
Lie algebra cohomology is an important tool in many branches of mathematics. It is used in the Topology of homogeneous spaces, Deformation theory, and Extension theory. There exists extensive theory for calculating the cohomology of semi simple Lie algebras, but more tools are needed for calculating the cohomology of general Lie algebras. To calculate the cohomology of general Lie algebras, I used the symbolic software program called Maple. I wrote software to calculate the cohomology in several different ways. I wrote several programs to calculate the cohomology directly. This proved to be computationally expensive as the number of differential forms used in each step of the direct calculation is equal to a binomial expansion. The second method used was the Serre--Hochschild spectral sequence. The Serre--Hochschild spectral sequence breaks the problem up into a grid of smaller problems that converge to the total cohomology of the Lie algebra.
Kullberg, Jacob, "Calculating the Cohomology of a Lie Algebra Using Maple and the Serre Hochschild Spectral Sequence" (2018). All Graduate Plan B and other Reports. 1321.
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