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--- blog:2023-09-12 [2023/09/13 23:58] – pzhou
+++ blog:2023-09-12 [2023/09/14 00:10] (current) – [Challenge 2] pzhou
@@ Line 30: / Line 30: @@
 ==== Challenge 2 ====
-See if you can recover  $NH_k$ ? But this is already done.
+See if you can recover  $NH_k$ ? But this is already done. Let's double check.
+how to see  $T^{k-1} \to (k) Hom(T, T) T^{k-1}$ , this is like  $(k) NH_{k-1} \C[x]$ , OK, roughly speaking  $\C[S_k]$  as  $\C[S_{k-1}]$  module is  $k$  dimensional. OK. fine.
+==== Challenge 3 ====
+Reproduce Rouquier.