Properties

Label 75.18.a.b
Level $75$
Weight $18$
Character orbit 75.a
Self dual yes
Analytic conductor $137.417$
Analytic rank $1$
Dimension $2$
CM no
Inner twists $1$

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Newspace parameters

Copy content comment:Compute space of new eigenforms
 
Copy content gp:[N,k,chi] = [75,18,Mod(1,75)] 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("75.1"); S:= CuspForms(chi, 18); N := Newforms(S);
 
Copy content sage:from sage.modular.dirichlet import DirichletCharacter H = DirichletGroup(75, base_ring=CyclotomicField(2)) chi = DirichletCharacter(H, H._module([0, 0])) N = Newforms(chi, 18, names="a")
 
Level: \( N \) \(=\) \( 75 = 3 \cdot 5^{2} \)
Weight: \( k \) \(=\) \( 18 \)
Character orbit: \([\chi]\) \(=\) 75.a (trivial)

Newform invariants

Copy content comment:select newform
 
Copy content sage:traces = [2,-594] f = next(g for g in N if [g.coefficient(i+1).trace() for i in range(2)] == traces)
 
Copy content gp:f = lf[1] \\ Warning: the index may be different
 
Self dual: yes
Analytic conductor: \(137.416565508\)
Analytic rank: \(1\)
Dimension: \(2\)
Coefficient field: \(\Q(\sqrt{14569}) \)
Copy content comment:defining polynomial
 
Copy content gp:f.mod \\ as an extension of the character field
 
Defining polynomial: \( x^{2} - x - 3642 \) Copy content Toggle raw display
Coefficient ring: \(\Z[a_1, a_2]\)
Coefficient ring index: \( 2\cdot 3 \)
Twist minimal: no (minimal twist has level 3)
Fricke sign: \(+1\)
Sato-Tate group: $\mathrm{SU}(2)$

$q$-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 \(\beta = 3\sqrt{14569}\). We also show the integral \(q\)-expansion of the trace form.

\(f(q)\) \(=\) \( q + ( - \beta - 297) q^{2} - 6561 q^{3} + (594 \beta + 88258) q^{4} + (6561 \beta + 1948617) q^{6} + (29376 \beta - 12235784) q^{7} + ( - 133604 \beta - 65170116) q^{8} + 43046721 q^{9} + (128128 \beta - 493776756) q^{11}+ \cdots + (5515490268288 \beta - 21\!\cdots\!76) q^{99}+O(q^{100}) \) Copy content Toggle raw display
\(\operatorname{Tr}(f)(q)\) \(=\) \( 2 q - 594 q^{2} - 13122 q^{3} + 176516 q^{4} + 3897234 q^{6} - 24471568 q^{7} - 130340232 q^{8} + 86093442 q^{9} - 987553512 q^{11} - 1158121476 q^{12} + 2519398244 q^{13} - 435565296 q^{14} + 50611323920 q^{16}+ \cdots - 42\!\cdots\!52 q^{99}+O(q^{100}) \) Copy content Toggle raw display

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   \(\iota_m(\nu)\) \( a_{2} \) \( a_{3} \) \( a_{4} \) \( a_{5} \) \( a_{6} \) \( a_{7} \) \( a_{8} \) \( a_{9} \) \( a_{10} \)
1.1
60.8511
−59.8511
−659.106 −6561.00 303349. 0 4.32440e6 −1.59855e6 −1.13549e8 4.30467e7 0
1.2 65.1063 −6561.00 −126833. 0 −427163. −2.28730e7 −1.67913e7 4.30467e7 0
\(n\): e.g. 2-40 or 80-90
Significant digits:
Format:

Atkin-Lehner signs

\( p \) Sign
\(3\) \( +1 \)
\(5\) \( +1 \)

Inner twists

This newform does not admit any (nontrivial) inner twists.

Twists

       By twisting character orbit
Char Parity Ord Mult Type Twist Min Dim
1.a even 1 1 trivial 75.18.a.b 2
5.b even 2 1 3.18.a.b 2
5.c odd 4 2 75.18.b.c 4
15.d odd 2 1 9.18.a.c 2
20.d odd 2 1 48.18.a.h 2
    
        By twisted newform orbit
Twist Min Dim Char Parity Ord Mult Type
3.18.a.b 2 5.b even 2 1
9.18.a.c 2 15.d odd 2 1
48.18.a.h 2 20.d odd 2 1
75.18.a.b 2 1.a even 1 1 trivial
75.18.b.c 4 5.c odd 4 2

Hecke kernels

This newform subspace can be constructed as the kernel of the linear operator \( T_{2}^{2} + 594T_{2} - 42912 \) acting on \(S_{18}^{\mathrm{new}}(\Gamma_0(75))\). Copy content Toggle raw display

Hecke characteristic polynomials

$p$ $F_p(T)$
$2$ \( T^{2} + 594T - 42912 \) Copy content Toggle raw display
$3$ \( (T + 6561)^{2} \) Copy content Toggle raw display
$5$ \( T^{2} \) Copy content Toggle raw display
$7$ \( T^{2} + \cdots + 36563624964160 \) Copy content Toggle raw display
$11$ \( T^{2} + \cdots + 24\!\cdots\!72 \) Copy content Toggle raw display
$13$ \( T^{2} + \cdots + 85\!\cdots\!88 \) Copy content Toggle raw display
$17$ \( T^{2} + \cdots + 23\!\cdots\!24 \) Copy content Toggle raw display
$19$ \( T^{2} + \cdots - 18\!\cdots\!20 \) Copy content Toggle raw display
$23$ \( T^{2} + \cdots - 22\!\cdots\!20 \) Copy content Toggle raw display
$29$ \( T^{2} + \cdots - 50\!\cdots\!80 \) Copy content Toggle raw display
$31$ \( T^{2} + \cdots + 37\!\cdots\!00 \) Copy content Toggle raw display
$37$ \( T^{2} + \cdots - 41\!\cdots\!20 \) Copy content Toggle raw display
$41$ \( T^{2} + \cdots + 26\!\cdots\!40 \) Copy content Toggle raw display
$43$ \( T^{2} + \cdots - 36\!\cdots\!96 \) Copy content Toggle raw display
$47$ \( T^{2} + \cdots + 19\!\cdots\!36 \) Copy content Toggle raw display
$53$ \( T^{2} + \cdots + 54\!\cdots\!20 \) Copy content Toggle raw display
$59$ \( T^{2} + \cdots - 17\!\cdots\!80 \) Copy content Toggle raw display
$61$ \( T^{2} + \cdots + 19\!\cdots\!56 \) Copy content Toggle raw display
$67$ \( T^{2} + \cdots + 27\!\cdots\!64 \) Copy content Toggle raw display
$71$ \( T^{2} + \cdots + 45\!\cdots\!64 \) Copy content Toggle raw display
$73$ \( T^{2} + \cdots - 17\!\cdots\!00 \) Copy content Toggle raw display
$79$ \( T^{2} + \cdots - 10\!\cdots\!00 \) Copy content Toggle raw display
$83$ \( T^{2} + \cdots + 36\!\cdots\!72 \) Copy content Toggle raw display
$89$ \( T^{2} + \cdots - 16\!\cdots\!60 \) Copy content Toggle raw display
$97$ \( T^{2} + \cdots + 81\!\cdots\!04 \) Copy content Toggle raw display
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