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1 vote
0 answers
56 views

Character of the irreducible representation $ψ^λ$ : $S_4$ → $Aut_C(S^λ)$

I am struggling with these exercise from group representations and would really appreciate some steps to take or sources with similar exercises. The task is to compute the character of the irreducible ...
Tereza Tizkova's user avatar
0 votes
0 answers
94 views

Computing the characters of $\mathbf{1}_{D_n} \uparrow^{S_n}_{D_n}$

How can I compute the characters of the induced representation $\mathbf{1}_{D_n} \uparrow^{S_n}_{D_n}$? Here, $S_n$ is the symmetric group over $n$ symbols and $D_n$ is the dihedral group of order $2 ...
Omar Shehab's user avatar
2 votes
1 answer
405 views

Characters of permutation representations for $S_4$

I am going through the lecture note How to get character tables of symmetric groups. On page 2, it computes the character table of $S_4$. The procedure starts with building the table of the ...
Omar Shehab's user avatar
1 vote
0 answers
204 views

Product of standard and sign representation of $S_5$

I am able to work out the sign representation of $S_5$ and standard representation of $S_5$. How do I compute the product of standard and sign representation of $S_5$? What kind of product do I need ...
Omar Shehab's user avatar
0 votes
2 answers
913 views

Standard representation of $S_5$

I am trying to determine the standard representation of $S_5$. I understand that it will be a map from group elements to $\mathbb{C}^4$. The character table is as follows. I understand that the ...
Omar Shehab's user avatar