這篇論文證明了一個8階辛群的冪單根式上Higman-Lehrer-Isaacs猜想的弱類比，
其中q是一個奇質數的次方。更詳細的說，8階辛群的冪單根式的階次為q^e的不可
分解的特徵質的個數是一個係數為非負整數的q-1的多項式。

This thesis prove an weak analogue of Higman-Lehrer-Isaacs conjecture for the
unipotent radical of Sp8(q), where q is a power of an odd prime. More precisely,
the number of irreducible character of degree q^e of Sp8(q) ∩ U8 is a polynomial in
q-1 with non-negative integer coefficients.

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