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Zusammenfassung: <jats:title>Abstract</jats:title><jats:p>We develop a new <jats:italic>p</jats:italic>-adic algorithm to compute the minimal polynomial of a class invariant. Our approach works for virtually any modular function yielding class invariants. The main algorithmic tool is modular polynomials, a concept which we generalize to functions of higher level.</jats:p>
Umfang: 108-126
ISSN: 1461-1570
DOI: 10.1112/s1461157009000175