add action on matrices in row reduced echelon form #4311
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This implements the action of a matrix group on subspaces of its natural module.
thofma
reviewed
Nov 14, 2024
src/Groups/action.jl
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| ``` | ||
| """ | ||
| function on_rref_mats(m::MatElem{T}, x::MatrixGroupElem) where T <: FinFieldElem | ||
| return rref(m * x)[2] |
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| return rref(m * x)[2] | |
| return echelon_form(m * x) |
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It is the same, but since we have echelon_form, we might as well make use of it.
Call `echelon_form` instead of `rref`, rename the function accordingly. (Also `echelon_form` cannot be referenced via `@ref`.)
(`rref` and `echelon_form` have different output ...)
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This implements the action of a matrix group on subspaces of its natural module.