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Polylogarithms

Liₛ(z), dilogarithm values

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Sunday, August 23, 2026

Problems
Li · PolylogarithmsNo. 1

Evaluate the dilogarithm Li₂(1) = Σ (n=1→∞) 1/n².

Li · PolylogarithmsNo. 2

Show that Li₍3₎(1) = ζ(3) and state its value.

Li · PolylogarithmsNo. 3

Show that Li₍2₎(1) = ζ(2) and state its value.

Li · PolylogarithmsNo. 4

Evaluate the dilogarithm Li₂(1) = Σ (n=1→∞) 1/n².

Li · PolylogarithmsNo. 5

Prove d/dz Li₂(z) = −ln(1 − z)/z.

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