(2,2,{(k-1)/4,(k+1)/4},±(-1)^(k/2))

Holomorphic, Degree 2, Level 3

Back to Degree 2, Back to the start

Let tex2html_wrap_inline706 denote the Legendre symbol mod 3. There is a weight 1 Eisenstein series in tex2html_wrap_inline708 which is associated with

displaymath710

It is given by

eqnarray3

In general, we use the notation

displaymath712

where tex2html_wrap_inline714 denotes the level 1 Eisenstein series of weight k.

The square of tex2html_wrap_inline718 is the Eisenstein series of weight 2:

eqnarray23

which is associated with

displaymath720

There is a two dimensional space of modular forms of weight 4 spanned by

eqnarray51

and

eqnarray55

Other relations among Eisenstein series include:

displaymath722

and

displaymath724