3 papers
math.NT2026
Analogue of the theta group II
Kazuhide Matsuda
In this series of papers, we introduce higher level versions of the theta group In this paper, we treat the theta group of level , and construct modular fo…
math.NT2026
Analogue of the theta group
Kazuhide Matsuda
In this paper, we introduce higher level versions of the theta group In particular, we treat level 3 and 4 versions of the theta group, and and pro…
math.NT2025
Notes on the multiplier systems of and
Kazuhide Matsuda
The multiplier systems of and are characters. In this paper, we determine their kernels, Ker and Ker$\,ν_{ θ^{2k} }…