@article{oai:air.repo.nii.ac.jp:00001185,
 author = {ITO, Hideji and 伊藤, 日出治},
 issue = {55},
 journal = {秋田大学教育文化学部研究紀要 自然科学},
 month = {Mar},
 note = {In our previous papers [6], [7], we have studied the modular equation <I>((X, Y) of j(z) where j (z) is the most basic modular function with respect to SL2 (Z). Now we study about the modular equation <I>~3) (X, Y) of j (z) 1/3 which is a modular function for r(3). Especially, we have otained the explicit form of <I>~3\X, Y) for all primes f :::; 131 and found that certain ongruences of their coefficients (like those noted in [6]) hold for f E P = {2, 5, 7,13,19, 31}. This is remarkable since if we include 3 in P then these primes in P coincide with those primes that arise in connection to the Monster simple group.},
 pages = {17--28},
 title = {On the Modular Equation of j(z)1/3},
 year = {2000}
}