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Computations on Verma Modules

I want to do some computation on Verma Modules. Consider the Verma Module Wλ of weight λ. We know that Wλ has a unique maximal submodule Nλ and a corresponding irreducible quotient L(λ)=Wλ/Nλ.

  1. I found some documentation about Verma Modules on the SAGE website. But it does not tell how to find the irreducible quotient. I want to figure out this quotient L(λ).
  2. Secondly, I want to see know the dimensions of weight spaces of Wλ and L(λ) and what they look like explicitly.

Could you please help me with the syntax? Thanks is advance.