login
This site is supported by donations to The OEIS Foundation.
Logo

Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A159632 Dimension of space of cusp forms of weight 3/2, level 4*n and trivial character. 1
0, 0, 0, 0, 0, 0, 1, 0, 0, 1, 2, 0, 2, 2, 3, 1, 3, 2, 4, 2, 5, 4, 5, 2, 2, 5, 5, 4, 6, 7, 7, 3, 9, 7, 9, 4, 8, 8, 11, 6, 9, 11, 10, 8, 10, 10, 11, 7, 6, 8, 15, 10, 12, 11, 15, 10, 17, 13, 14, 14, 14, 14, 18, 8, 17, 19, 16, 14, 21, 19, 17, 12, 17, 17, 20, 16, 21, 23, 19, 15, 15, 19, 20, 22, 23 (list; graph; refs; listen; history; internal format)
OFFSET

1,11

COMMENTS

Contribution from S. R. Finch (Steven.Finch(AT)inria.fr), Apr 22 2009: (Start)

Denote dim{M_k(Gamma_0(N))} by m(k,N) and dim{S_k(Gamma_0(N))} by s(k,N).

We have

m(3/2,N)-s(3/2,N)+m(1/2,N)-s(1/2,N) = m(5/2,N)-s(5/2,N)

hence

s(3/2,N)+s(1/2,N) = m(1/2,N)+m(3/2,N)-(m(5/2,N)-s(5/2,N))

= A159631(N/4)+A159630(N/4)-A159633(N/4)

where N is any positive multiple of 4. (End)

REFERENCES

H. Cohen and J. Oesterle, Dimensions des espaces de formes modulaires, Modular Functions of One Variable. VI, Proc. 1976 Bonn conf., Lect. Notes in Math. 627, Springer-Verlag, 1977, pp. 69-78.

LINKS

Magma Calculator.

Scanned copy of Cohen-Oesterle.

PROG

(MAGMA) [[4*n, Dimension(CuspidalSubspace(HalfIntegralWeightForms(4*n, 3/2)))] : n in [1..90]]

CROSSREFS

A159630, A159631, A159633, A159635, A159636 [From S. R. Finch (Steven.Finch(AT)inria.fr), Apr 22 2009]

Sequence in context: A061199 A144741 A103615 * A164733 A070101 A022830

Adjacent sequences:  A159629 A159630 A159631 * A159633 A159634 A159635

KEYWORD

nonn

AUTHOR

S. R. Finch (Steven.Finch(AT)inria.fr), Apr 17 2009

Lookup | Welcome | Wiki | Register | Music | Plot 2 | Demos | Index | Browse | More | WebCam
Contribute new seq. or comment | Format | Transforms | Puzzles | Hot | Classics
Recent Additions | More pages | Superseeker | Maintained by The OEIS Foundation Inc.

Content is available under The OEIS End-User License Agreement .

Last modified February 17 23:45 EST 2012. Contains 206085 sequences.