Properties

Label 1850.2.b.g
Level $1850$
Weight $2$
Character orbit 1850.b
Analytic conductor $14.772$
Analytic rank $0$
Dimension $2$
CM no
Inner twists $2$

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Newspace parameters

Level: \( N \) \(=\) \( 1850 = 2 \cdot 5^{2} \cdot 37 \)
Weight: \( k \) \(=\) \( 2 \)
Character orbit: \([\chi]\) \(=\) 1850.b (of order \(2\), degree \(1\), not minimal)

Newform invariants

Self dual: no
Analytic conductor: \(14.7723243739\)
Analytic rank: \(0\)
Dimension: \(2\)
Coefficient field: \(\Q(\sqrt{-1}) \)
Defining polynomial: \(x^{2} + 1\)
Coefficient ring: \(\Z[a_1, a_2]\)
Coefficient ring index: \( 1 \)
Twist minimal: no (minimal twist has level 370)
Sato-Tate group: $\mathrm{SU}(2)[C_{2}]$

$q$-expansion

Coefficients of the \(q\)-expansion are expressed in terms of \(i = \sqrt{-1}\). We also show the integral \(q\)-expansion of the trace form.

\(f(q)\) \(=\) \( q -i q^{2} + 2 i q^{3} - q^{4} + 2 q^{6} -i q^{7} + i q^{8} - q^{9} +O(q^{10})\) \( q -i q^{2} + 2 i q^{3} - q^{4} + 2 q^{6} -i q^{7} + i q^{8} - q^{9} + 3 q^{11} -2 i q^{12} + 4 i q^{13} - q^{14} + q^{16} + 3 i q^{17} + i q^{18} -2 q^{19} + 2 q^{21} -3 i q^{22} -6 i q^{23} -2 q^{24} + 4 q^{26} + 4 i q^{27} + i q^{28} -3 q^{29} + 5 q^{31} -i q^{32} + 6 i q^{33} + 3 q^{34} + q^{36} + i q^{37} + 2 i q^{38} -8 q^{39} + 3 q^{41} -2 i q^{42} + i q^{43} -3 q^{44} -6 q^{46} + 12 i q^{47} + 2 i q^{48} + 6 q^{49} -6 q^{51} -4 i q^{52} -3 i q^{53} + 4 q^{54} + q^{56} -4 i q^{57} + 3 i q^{58} - q^{61} -5 i q^{62} + i q^{63} - q^{64} + 6 q^{66} -4 i q^{67} -3 i q^{68} + 12 q^{69} + 6 q^{71} -i q^{72} + 16 i q^{73} + q^{74} + 2 q^{76} -3 i q^{77} + 8 i q^{78} -8 q^{79} -11 q^{81} -3 i q^{82} + 12 i q^{83} -2 q^{84} + q^{86} -6 i q^{87} + 3 i q^{88} + 6 q^{89} + 4 q^{91} + 6 i q^{92} + 10 i q^{93} + 12 q^{94} + 2 q^{96} + 17 i q^{97} -6 i q^{98} -3 q^{99} +O(q^{100})\)
\(\operatorname{Tr}(f)(q)\) \(=\) \( 2q - 2q^{4} + 4q^{6} - 2q^{9} + O(q^{10}) \) \( 2q - 2q^{4} + 4q^{6} - 2q^{9} + 6q^{11} - 2q^{14} + 2q^{16} - 4q^{19} + 4q^{21} - 4q^{24} + 8q^{26} - 6q^{29} + 10q^{31} + 6q^{34} + 2q^{36} - 16q^{39} + 6q^{41} - 6q^{44} - 12q^{46} + 12q^{49} - 12q^{51} + 8q^{54} + 2q^{56} - 2q^{61} - 2q^{64} + 12q^{66} + 24q^{69} + 12q^{71} + 2q^{74} + 4q^{76} - 16q^{79} - 22q^{81} - 4q^{84} + 2q^{86} + 12q^{89} + 8q^{91} + 24q^{94} + 4q^{96} - 6q^{99} + O(q^{100}) \)

Character values

We give the values of \(\chi\) on generators for \(\left(\mathbb{Z}/1850\mathbb{Z}\right)^\times\).

\(n\) \(1001\) \(1777\)
\(\chi(n)\) \(1\) \(-1\)

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.

Label \(\iota_m(\nu)\) \( a_{2} \) \( a_{3} \) \( a_{4} \) \( a_{5} \) \( a_{6} \) \( a_{7} \) \( a_{8} \) \( a_{9} \) \( a_{10} \)
149.1
1.00000i
1.00000i
1.00000i 2.00000i −1.00000 0 2.00000 1.00000i 1.00000i −1.00000 0
149.2 1.00000i 2.00000i −1.00000 0 2.00000 1.00000i 1.00000i −1.00000 0
\(n\): e.g. 2-40 or 990-1000
Significant digits:
Format:

Inner twists

Char Parity Ord Mult Type
1.a even 1 1 trivial
5.b even 2 1 inner

Twists

       By twisting character orbit
Char Parity Ord Mult Type Twist Min Dim
1.a even 1 1 trivial 1850.2.b.g 2
5.b even 2 1 inner 1850.2.b.g 2
5.c odd 4 1 370.2.a.a 1
5.c odd 4 1 1850.2.a.o 1
15.e even 4 1 3330.2.a.v 1
20.e even 4 1 2960.2.a.j 1
    
        By twisted newform orbit
Twist Min Dim Char Parity Ord Mult Type
370.2.a.a 1 5.c odd 4 1
1850.2.a.o 1 5.c odd 4 1
1850.2.b.g 2 1.a even 1 1 trivial
1850.2.b.g 2 5.b even 2 1 inner
2960.2.a.j 1 20.e even 4 1
3330.2.a.v 1 15.e even 4 1

Hecke kernels

This newform subspace can be constructed as the intersection of the kernels of the following linear operators acting on \(S_{2}^{\mathrm{new}}(1850, [\chi])\):

\( T_{3}^{2} + 4 \)
\( T_{7}^{2} + 1 \)
\( T_{13}^{2} + 16 \)

Hecke characteristic polynomials

$p$ $F_p(T)$
$2$ \( 1 + T^{2} \)
$3$ \( 4 + T^{2} \)
$5$ \( T^{2} \)
$7$ \( 1 + T^{2} \)
$11$ \( ( -3 + T )^{2} \)
$13$ \( 16 + T^{2} \)
$17$ \( 9 + T^{2} \)
$19$ \( ( 2 + T )^{2} \)
$23$ \( 36 + T^{2} \)
$29$ \( ( 3 + T )^{2} \)
$31$ \( ( -5 + T )^{2} \)
$37$ \( 1 + T^{2} \)
$41$ \( ( -3 + T )^{2} \)
$43$ \( 1 + T^{2} \)
$47$ \( 144 + T^{2} \)
$53$ \( 9 + T^{2} \)
$59$ \( T^{2} \)
$61$ \( ( 1 + T )^{2} \)
$67$ \( 16 + T^{2} \)
$71$ \( ( -6 + T )^{2} \)
$73$ \( 256 + T^{2} \)
$79$ \( ( 8 + T )^{2} \)
$83$ \( 144 + T^{2} \)
$89$ \( ( -6 + T )^{2} \)
$97$ \( 289 + T^{2} \)
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