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Newspace parameters

Copy content comment:Compute space of new eigenforms
 
Copy content gp:[N,k,chi] = [75,13,Mod(74,75)] mf = mfinit([N,k,chi],0) lf = mfeigenbasis(mf)
 
Copy content magma:// Please install CHIMP (https://github.com/edgarcosta/CHIMP) if you want to run this code chi := DirichletCharacter("75.74"); S:= CuspForms(chi, 13); N := Newforms(S);
 
Copy content sage:from sage.modular.dirichlet import DirichletCharacter H = DirichletGroup(75, base_ring=CyclotomicField(2)) chi = DirichletCharacter(H, H._module([1, 1])) N = Newforms(chi, 13, names="a")
 
Level: \( N \) \(=\) \( 75 = 3 \cdot 5^{2} \)
Weight: \( k \) \(=\) \( 13 \)
Character orbit: \([\chi]\) \(=\) 75.d (of order \(2\), degree \(1\), not minimal)

Newform invariants

Copy content comment:select newform
 
Copy content sage:traces = [4,0,0,17312,0,101088] f = next(g for g in N if [g.coefficient(i+1).trace() for i in range(6)] == traces)
 
Copy content gp:f = lf[1] \\ Warning: the index may be different
 
Self dual: no
Analytic conductor: \(68.5495362957\)
Analytic rank: \(0\)
Dimension: \(4\)
Coefficient field: \(\Q(i, \sqrt{26})\)
Copy content comment:defining polynomial
 
Copy content gp:f.mod \\ as an extension of the character field
 
Defining polynomial: \( x^{4} + 169 \) Copy content Toggle raw display
Coefficient ring: \(\Z[a_1, \ldots, a_{7}]\)
Coefficient ring index: \( 2^{3}\cdot 3^{4}\cdot 5^{4} \)
Twist minimal: no (minimal twist has level 3)
Sato-Tate group: $\mathrm{SU}(2)[C_{2}]$

$q$-expansion

Copy content comment:q-expansion
 
Copy content sage:f.q_expansion() # note that sage often uses an isomorphic number field
 
Copy content gp:mfcoefs(f, 20)
 

Coefficients of the \(q\)-expansion are expressed in terms of a basis \(1,\beta_1,\beta_2,\beta_3\) for the coefficient ring described below. We also show the integral \(q\)-expansion of the trace form.

\(f(q)\) \(=\) \( q - \beta_{2} q^{2} + ( - 3 \beta_{2} - 27 \beta_1) q^{3} + 4328 q^{4} + (27 \beta_{3} + 25272) q^{6} - 1610 \beta_1 q^{7} - 232 \beta_{2} q^{8} + (162 \beta_{3} - 379809) q^{9} + 506 \beta_{3} q^{11}+ \cdots + ( - 192183354 \beta_{3} - 431582580000) q^{99}+O(q^{100}) \) Copy content Toggle raw display
\(\operatorname{Tr}(f)(q)\) \(=\) \( 4 q + 17312 q^{4} + 101088 q^{6} - 1519236 q^{9} - 63092480 q^{16} - 213374312 q^{19} - 108675000 q^{21} + 23452416 q^{24} + 266104808 q^{31} + 5449856256 q^{34} - 6575253408 q^{36} + 3466935000 q^{39}+ \cdots - 1726330320000 q^{99}+O(q^{100}) \) Copy content Toggle raw display

Basis of coefficient ring in terms of a root \(\nu\) of \( x^{4} + 169 \) : Copy content Toggle raw display

\(\beta_{1}\)\(=\) \( ( 25\nu^{2} ) / 13 \) Copy content Toggle raw display
\(\beta_{2}\)\(=\) \( ( -18\nu^{3} + 234\nu ) / 13 \) Copy content Toggle raw display
\(\beta_{3}\)\(=\) \( ( 450\nu^{3} + 5850\nu ) / 13 \) Copy content Toggle raw display
\(\nu\)\(=\) \( ( \beta_{3} + 25\beta_{2} ) / 900 \) Copy content Toggle raw display
\(\nu^{2}\)\(=\) \( ( 13\beta_1 ) / 25 \) Copy content Toggle raw display
\(\nu^{3}\)\(=\) \( ( 13\beta_{3} - 325\beta_{2} ) / 900 \) Copy content Toggle raw display

Character values

We give the values of \(\chi\) on generators for \(\left(\mathbb{Z}/75\mathbb{Z}\right)^\times\).

\(n\) \(26\) \(52\)
\(\chi(n)\) \(-1\) \(-1\)

Embeddings

For each embedding \(\iota_m\) of the coefficient field, the values \(\iota_m(a_n)\) are shown below.

For more information on an embedded modular form you can click on its label.

Copy content comment:embeddings in the coefficient field
 
Copy content gp:mfembed(f)
 
Label   \(\iota_m(\nu)\) \( a_{2} \) \( a_{3} \) \( a_{4} \) \( a_{5} \) \( a_{6} \) \( a_{7} \) \( a_{8} \) \( a_{9} \) \( a_{10} \)
74.1
2.54951 + 2.54951i
2.54951 2.54951i
−2.54951 2.54951i
−2.54951 + 2.54951i
−91.7824 −275.347 675.000i 4328.00 0 25272.0 + 61953.1i 40250.0i −21293.5 −379809. + 371719.i 0
74.2 −91.7824 −275.347 + 675.000i 4328.00 0 25272.0 61953.1i 40250.0i −21293.5 −379809. 371719.i 0
74.3 91.7824 275.347 675.000i 4328.00 0 25272.0 61953.1i 40250.0i 21293.5 −379809. 371719.i 0
74.4 91.7824 275.347 + 675.000i 4328.00 0 25272.0 + 61953.1i 40250.0i 21293.5 −379809. + 371719.i 0
\(n\): e.g. 2-40 or 80-90
Significant digits:
Format:

Inner twists

Char Parity Ord Mult Type
1.a even 1 1 trivial
3.b odd 2 1 inner
5.b even 2 1 inner
15.d odd 2 1 inner

Twists

       By twisting character orbit
Char Parity Ord Mult Type Twist Min Dim
1.a even 1 1 trivial 75.13.d.b 4
3.b odd 2 1 inner 75.13.d.b 4
5.b even 2 1 inner 75.13.d.b 4
5.c odd 4 1 3.13.b.b 2
5.c odd 4 1 75.13.c.c 2
15.d odd 2 1 inner 75.13.d.b 4
15.e even 4 1 3.13.b.b 2
15.e even 4 1 75.13.c.c 2
20.e even 4 1 48.13.e.b 2
40.i odd 4 1 192.13.e.d 2
40.k even 4 1 192.13.e.c 2
45.k odd 12 2 81.13.d.c 4
45.l even 12 2 81.13.d.c 4
60.l odd 4 1 48.13.e.b 2
120.q odd 4 1 192.13.e.c 2
120.w even 4 1 192.13.e.d 2
    
        By twisted newform orbit
Twist Min Dim Char Parity Ord Mult Type
3.13.b.b 2 5.c odd 4 1
3.13.b.b 2 15.e even 4 1
48.13.e.b 2 20.e even 4 1
48.13.e.b 2 60.l odd 4 1
75.13.c.c 2 5.c odd 4 1
75.13.c.c 2 15.e even 4 1
75.13.d.b 4 1.a even 1 1 trivial
75.13.d.b 4 3.b odd 2 1 inner
75.13.d.b 4 5.b even 2 1 inner
75.13.d.b 4 15.d odd 2 1 inner
81.13.d.c 4 45.k odd 12 2
81.13.d.c 4 45.l even 12 2
192.13.e.c 2 40.k even 4 1
192.13.e.c 2 120.q odd 4 1
192.13.e.d 2 40.i odd 4 1
192.13.e.d 2 120.w even 4 1

Hecke kernels

This newform subspace can be constructed as the kernel of the linear operator \( T_{2}^{2} - 8424 \) acting on \(S_{13}^{\mathrm{new}}(75, [\chi])\). Copy content Toggle raw display

Hecke characteristic polynomials

$p$ $F_p(T)$
$2$ \( (T^{2} - 8424)^{2} \) Copy content Toggle raw display
$3$ \( T^{4} + \cdots + 282429536481 \) Copy content Toggle raw display
$5$ \( T^{4} \) Copy content Toggle raw display
$7$ \( (T^{2} + 1620062500)^{2} \) Copy content Toggle raw display
$11$ \( (T^{2} + 1348029540000)^{2} \) Copy content Toggle raw display
$13$ \( (T^{2} + 1648784402500)^{2} \) Copy content Toggle raw display
$17$ \( (T^{2} - 220359487855104)^{2} \) Copy content Toggle raw display
$19$ \( (T + 53343578)^{4} \) Copy content Toggle raw display
$23$ \( (T^{2} - 11\!\cdots\!44)^{2} \) Copy content Toggle raw display
$29$ \( (T^{2} + 14\!\cdots\!00)^{2} \) Copy content Toggle raw display
$31$ \( (T - 66526202)^{4} \) Copy content Toggle raw display
$37$ \( (T^{2} + 49\!\cdots\!00)^{2} \) Copy content Toggle raw display
$41$ \( (T^{2} + 67\!\cdots\!00)^{2} \) Copy content Toggle raw display
$43$ \( (T^{2} + 80\!\cdots\!00)^{2} \) Copy content Toggle raw display
$47$ \( (T^{2} - 11\!\cdots\!04)^{2} \) Copy content Toggle raw display
$53$ \( (T^{2} - 16\!\cdots\!04)^{2} \) Copy content Toggle raw display
$59$ \( (T^{2} + 21\!\cdots\!00)^{2} \) Copy content Toggle raw display
$61$ \( (T + 40679935918)^{4} \) Copy content Toggle raw display
$67$ \( (T^{2} + 14\!\cdots\!00)^{2} \) Copy content Toggle raw display
$71$ \( (T^{2} + 20\!\cdots\!00)^{2} \) Copy content Toggle raw display
$73$ \( (T^{2} + 37\!\cdots\!00)^{2} \) Copy content Toggle raw display
$79$ \( (T - 252324997702)^{4} \) Copy content Toggle raw display
$83$ \( (T^{2} - 16\!\cdots\!84)^{2} \) Copy content Toggle raw display
$89$ \( (T^{2} + 12\!\cdots\!00)^{2} \) Copy content Toggle raw display
$97$ \( (T^{2} + 42\!\cdots\!00)^{2} \) Copy content Toggle raw display
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