What is the most direct method to calculate the kernel of a matrix $A\in k [x_1,\dots,x_l]^{n\times m}$, $k$ being a field? What is the most direct method to calculate its Hilbert series? Is one obliged to use Gröbner bases?
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http://www.unimelb-macaulay2.cloud.edu.au/ – math54321 Apr 16 '23 at 19:03
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I know about M2. I want to do the calculations by hand in the most direct way. – HCH Apr 17 '23 at 15:19