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Cuspidal class number of the tower of modular curvesX1(Npn)

โœ Scribed by Hae-Sang Sun

Book ID
105873731
Publisher
Springer
Year
2010
Tongue
English
Weight
251 KB
Volume
348
Category
Article
ISSN
0025-5831

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โœ Toshikazu Takagi ๐Ÿ“‚ Article ๐Ÿ“… 1997 ๐Ÿ› Elsevier Science ๐ŸŒ English โš– 413 KB

CUSPIDAL CLASS NUMBER FORMULA 181 the group ring. In Section 3, we prove that all modular units on the ลฝ . modular curve X M can be written as products of the functions h and 0 rational numbers. In Section 4, we determine a necessary and sufficient condition under which a product of the functions h

Determinantal Formula for the Cuspidal C
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โœ Fumio Hazama ๐Ÿ“‚ Article ๐Ÿ“… 1998 ๐Ÿ› Elsevier Science ๐ŸŒ English โš– 313 KB

An integer matrix whose determinant computes the cuspidal class number of the modular curve X 1 (m) is obtained. When m is an odd prime, this will provide us with an upper bound of the class number.