LMFDB - Artin representation 2.401.5t2.b.b

Basic invariants

Dimension:	$2$
Group:	$D_5$
Conductor:	$401$
Frobenius-Schur indicator:	$1$
Root number:	$1$
Artin field:	Galois closure of 10.10.10368641602001.1
Galois orbit size:	$2$
Smallest permutation container:	$D_{5}$
Parity:	even
Determinant:	1.401.2t1.a.a
Projective image:	$D_5$
Projective field:	Galois closure of 10.10.10368641602001.1

Defining polynomial

$f(x)$

$=$

$ x^{10} - 2x^{9} - 20x^{8} + 2x^{7} + 69x^{6} - x^{5} - 69x^{4} + 2x^{3} + 20x^{2} - 2x - 1 $

The roots of $f$ are computed in an extension of $\Q_{ 11 }$ to precision 5.

Minimal polynomial of a generator $a$ of $K$ over $\mathbb{Q}_{ 11 }$: $ x^{5} + 10x^{2} + 9 $ x^5 + 10*x^2 + 9

Roots:

$r_{ 1 }$	$=$	$ 9 a^{4} + 8 a^{3} + 5 a + 2 + \left(5 a^{4} + 6 a^{3} + 2 a^{2} + 3 a + 5\right)\cdot 11 + \left(7 a^{4} + 5 a^{3} + 5 a^{2} + 5 a + 9\right)\cdot 11^{2} + \left(6 a^{4} + 9 a^{3} + 6 a^{2} + 8 a + 10\right)\cdot 11^{3} + \left(a^{4} + 5 a^{3} + 9 a + 10\right)\cdot 11^{4} +O(11^{5})$ 9a^4 + 8a^3 + 5a + 2 + (5a^4 + 6a^3 + 2a^2 + 3a + 5)11 + (7a^4 + 5a^3 + 5a^2 + 5a + 9)11^2 + (6a^4 + 9a^3 + 6a^2 + 8a + 10)11^3 + (a^4 + 5a^3 + 9a + 10)*11^4+O(11^5)
$r_{ 2 }$	$=$	$ 5 a^{4} + 5 a^{3} + 7 a^{2} + 3 a + 6 + \left(2 a^{4} + 7 a^{3} + 2 a^{2} + a + 9\right)\cdot 11 + \left(10 a^{4} + 6 a^{3} + 3 a^{2} + 2 a + 4\right)\cdot 11^{2} + \left(5 a^{4} + 9 a^{3} + 10 a^{2} + 10 a\right)\cdot 11^{3} + \left(10 a^{4} + 7 a^{3} + 2 a^{2} + 10 a + 1\right)\cdot 11^{4} +O(11^{5})$ 5a^4 + 5a^3 + 7a^2 + 3a + 6 + (2a^4 + 7a^3 + 2a^2 + a + 9)11 + (10a^4 + 6a^3 + 3a^2 + 2a + 4)11^2 + (5a^4 + 9a^3 + 10a^2 + 10a)11^3 + (10a^4 + 7a^3 + 2a^2 + 10a + 1)*11^4+O(11^5)
$r_{ 3 }$	$=$	$ 8 a^{4} + 4 a^{3} + 7 a^{2} + 2 a + \left(7 a^{4} + 9 a^{3} + 10 a^{2} + 10\right)\cdot 11 + \left(a^{4} + 8 a^{3} + a^{2} + 5 a + 6\right)\cdot 11^{2} + \left(2 a^{4} + 4 a^{2} + 6 a + 2\right)\cdot 11^{3} + \left(3 a^{4} + 8 a^{3} + 8 a^{2} + 4 a + 2\right)\cdot 11^{4} +O(11^{5})$ 8a^4 + 4a^3 + 7a^2 + 2a + (7a^4 + 9a^3 + 10a^2 + 10)11 + (a^4 + 8a^3 + a^2 + 5a + 6)11^2 + (2a^4 + 4a^2 + 6a + 2)11^3 + (3a^4 + 8a^3 + 8a^2 + 4a + 2)11^4+O(11^5)
$r_{ 4 }$	$=$	$ 7 a^{4} + 4 a^{3} + a^{2} + 7 a + \left(4 a^{4} + 2 a^{3} + 4 a + 1\right)\cdot 11 + \left(a^{3} + 3 a^{2} + 9 a + 5\right)\cdot 11^{2} + \left(4 a^{3} + 4 a^{2} + 9 a\right)\cdot 11^{3} + \left(9 a^{4} + 3 a^{3} + 8 a^{2} + a + 7\right)\cdot 11^{4} +O(11^{5})$ 7a^4 + 4a^3 + a^2 + 7a + (4a^4 + 2a^3 + 4a + 1)11 + (a^3 + 3a^2 + 9a + 5)11^2 + (4a^3 + 4a^2 + 9a)11^3 + (9a^4 + 3a^3 + 8a^2 + a + 7)11^4+O(11^5)
$r_{ 5 }$	$=$	$ 8 a^{4} + 6 a^{3} + 3 a^{2} + 5 a + 1 + \left(8 a^{4} + 7 a^{3} + 10 a^{2} + a + 10\right)\cdot 11 + \left(8 a^{4} + 4 a^{3} + 8 a^{2} + 9 a + 3\right)\cdot 11^{2} + \left(5 a^{4} + 5 a^{3} + 4 a^{2} + 5 a + 8\right)\cdot 11^{3} + \left(10 a^{4} + 3 a\right)\cdot 11^{4} +O(11^{5})$ 8a^4 + 6a^3 + 3a^2 + 5a + 1 + (8a^4 + 7a^3 + 10a^2 + a + 10)11 + (8a^4 + 4a^3 + 8a^2 + 9a + 3)11^2 + (5a^4 + 5a^3 + 4a^2 + 5a + 8)11^3 + (10a^4 + 3a)*11^4+O(11^5)
$r_{ 6 }$	$=$	$ a^{4} + 10 a^{3} + 3 a + 3 + \left(7 a^{4} + 5 a^{3} + 8 a^{2} + a\right)\cdot 11 + \left(3 a^{4} + 8 a^{3} + 9 a^{2} + 9 a + 5\right)\cdot 11^{2} + \left(8 a^{4} + 3 a^{3} + 4 a^{2} + 9 a + 9\right)\cdot 11^{3} + \left(9 a^{4} + 6 a^{3} + 4 a^{2} + 8 a + 2\right)\cdot 11^{4} +O(11^{5})$ a^4 + 10a^3 + 3a + 3 + (7a^4 + 5a^3 + 8a^2 + a)11 + (3a^4 + 8a^3 + 9a^2 + 9a + 5)11^2 + (8a^4 + 3a^3 + 4a^2 + 9a + 9)11^3 + (9a^4 + 6a^3 + 4a^2 + 8a + 2)*11^4+O(11^5)
$r_{ 7 }$	$=$	$ a^{4} + 2 a^{3} + a^{2} + 9 a + 10 + \left(3 a^{4} + a^{3} + 5 a^{2} + 3 a + 4\right)\cdot 11 + \left(6 a^{4} + 9 a^{3} + 3 a^{2} + 5 a + 8\right)\cdot 11^{2} + \left(7 a^{3} + 4 a^{2} + 4 a\right)\cdot 11^{3} + \left(3 a^{4} + 2 a^{3} + 4 a^{2} + 3\right)\cdot 11^{4} +O(11^{5})$ a^4 + 2a^3 + a^2 + 9a + 10 + (3a^4 + a^3 + 5a^2 + 3a + 4)11 + (6a^4 + 9a^3 + 3a^2 + 5a + 8)11^2 + (7a^3 + 4a^2 + 4a)11^3 + (3a^4 + 2a^3 + 4a^2 + 3)*11^4+O(11^5)
$r_{ 8 }$	$=$	$ 8 a^{4} + 7 a^{3} + 3 a^{2} + 5 a + 7 + \left(7 a^{4} + 8 a^{3} + a^{2} + a + 5\right)\cdot 11 + \left(8 a^{4} + 8 a^{3} + 2 a^{2} + 4 a + 6\right)\cdot 11^{2} + \left(4 a^{4} + 3 a^{3} + 2 a^{2} + 9 a + 9\right)\cdot 11^{3} + \left(9 a^{4} + 9 a^{3} + 7 a + 9\right)\cdot 11^{4} +O(11^{5})$ 8a^4 + 7a^3 + 3a^2 + 5a + 7 + (7a^4 + 8a^3 + a^2 + a + 5)11 + (8a^4 + 8a^3 + 2a^2 + 4a + 6)11^2 + (4a^4 + 3a^3 + 2a^2 + 9a + 9)11^3 + (9a^4 + 9a^3 + 7a + 9)*11^4+O(11^5)
$r_{ 9 }$	$=$	$ 6 a^{4} + a^{3} + 6 a^{2} + 4 a + 4 + \left(4 a^{4} + 5 a^{3} + 7 a^{2} + 9 a + 6\right)\cdot 11 + \left(a^{4} + 2 a^{2} + 9 a\right)\cdot 11^{2} + \left(4 a^{4} + 5 a^{3} + 5 a^{2} + 7 a + 6\right)\cdot 11^{3} + \left(8 a^{4} + 8 a^{3} + 4 a^{2} + 3 a + 4\right)\cdot 11^{4} +O(11^{5})$ 6a^4 + a^3 + 6a^2 + 4a + 4 + (4a^4 + 5a^3 + 7a^2 + 9a + 6)11 + (a^4 + 2a^2 + 9a)11^2 + (4a^4 + 5a^3 + 5a^2 + 7a + 6)11^3 + (8a^4 + 8a^3 + 4a^2 + 3a + 4)*11^4+O(11^5)
$r_{ 10 }$	$=$	$ 2 a^{4} + 8 a^{3} + 5 a^{2} + a + 2 + \left(3 a^{4} + 7 a^{2} + 6 a + 2\right)\cdot 11 + \left(6 a^{4} + a^{3} + 3 a^{2} + 6 a + 4\right)\cdot 11^{2} + \left(5 a^{4} + 5 a^{3} + 8 a^{2} + 4 a + 6\right)\cdot 11^{3} + \left(2 a^{3} + 9 a^{2} + 3 a + 1\right)\cdot 11^{4} +O(11^{5})$ 2a^4 + 8a^3 + 5a^2 + a + 2 + (3a^4 + 7a^2 + 6a + 2)11 + (6a^4 + a^3 + 3a^2 + 6a + 4)11^2 + (5a^4 + 5a^3 + 8a^2 + 4a + 6)11^3 + (2a^3 + 9a^2 + 3a + 1)11^4+O(11^5)

Generators of the action on the roots $r_1, \ldots, r_{ 10 }$

Cycle notation
$(1,2)(3,5)(4,7)(6,9)(8,10)$
$(1,3,4,6,8)(2,10,9,7,5)$

Character values on conjugacy classes

Size	Order	Action on $r_1, \ldots, r_{ 10 }$	Character value
$1$	$1$	$()$	$2$
$5$	$2$	$(1,2)(3,5)(4,7)(6,9)(8,10)$	$0$
$2$	$5$	$(1,3,4,6,8)(2,10,9,7,5)$	$-\zeta_{5}^{3} - \zeta_{5}^{2} - 1$
$2$	$5$	$(1,4,8,3,6)(2,9,5,10,7)$	$\zeta_{5}^{3} + \zeta_{5}^{2}$

The blue line marks the conjugacy class containing complex conjugation.

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Basic invariants

Defining polynomial

Generators of the action on the roots $r_1, \ldots, r_{ 10 }$

Character values on conjugacy classes

This project is supported by grants from the US National Science Foundation, the UK Engineering and Physical Sciences Research Council, and the Simons Foundation.

Label	2.401.5t2.b.b
Dimension	$2$
Group	$D_5$
Conductor	$401$
Root number	$1$
Indicator	$1$

$r_{ 1 }$	$=$	\( 9 a^{4} + 8 a^{3} + 5 a + 2 + \left(5 a^{4} + 6 a^{3} + 2 a^{2} + 3 a + 5\right)\cdot 11 + \left(7 a^{4} + 5 a^{3} + 5 a^{2} + 5 a + 9\right)\cdot 11^{2} + \left(6 a^{4} + 9 a^{3} + 6 a^{2} + 8 a + 10\right)\cdot 11^{3} + \left(a^{4} + 5 a^{3} + 9 a + 10\right)\cdot 11^{4} +O(11^{5})\) 9a^4 + 8a^3 + 5a + 2 + (5a^4 + 6a^3 + 2a^2 + 3a + 5)11 + (7a^4 + 5a^3 + 5a^2 + 5a + 9)11^2 + (6a^4 + 9a^3 + 6a^2 + 8a + 10)11^3 + (a^4 + 5a^3 + 9a + 10)*11^4+O(11^5)
$r_{ 2 }$	$=$	\( 5 a^{4} + 5 a^{3} + 7 a^{2} + 3 a + 6 + \left(2 a^{4} + 7 a^{3} + 2 a^{2} + a + 9\right)\cdot 11 + \left(10 a^{4} + 6 a^{3} + 3 a^{2} + 2 a + 4\right)\cdot 11^{2} + \left(5 a^{4} + 9 a^{3} + 10 a^{2} + 10 a\right)\cdot 11^{3} + \left(10 a^{4} + 7 a^{3} + 2 a^{2} + 10 a + 1\right)\cdot 11^{4} +O(11^{5})\) 5a^4 + 5a^3 + 7a^2 + 3a + 6 + (2a^4 + 7a^3 + 2a^2 + a + 9)11 + (10a^4 + 6a^3 + 3a^2 + 2a + 4)11^2 + (5a^4 + 9a^3 + 10a^2 + 10a)11^3 + (10a^4 + 7a^3 + 2a^2 + 10a + 1)*11^4+O(11^5)
$r_{ 3 }$	$=$	\( 8 a^{4} + 4 a^{3} + 7 a^{2} + 2 a + \left(7 a^{4} + 9 a^{3} + 10 a^{2} + 10\right)\cdot 11 + \left(a^{4} + 8 a^{3} + a^{2} + 5 a + 6\right)\cdot 11^{2} + \left(2 a^{4} + 4 a^{2} + 6 a + 2\right)\cdot 11^{3} + \left(3 a^{4} + 8 a^{3} + 8 a^{2} + 4 a + 2\right)\cdot 11^{4} +O(11^{5})\) 8a^4 + 4a^3 + 7a^2 + 2a + (7a^4 + 9a^3 + 10a^2 + 10)11 + (a^4 + 8a^3 + a^2 + 5a + 6)11^2 + (2a^4 + 4a^2 + 6a + 2)11^3 + (3a^4 + 8a^3 + 8a^2 + 4a + 2)11^4+O(11^5)
$r_{ 4 }$	$=$	\( 7 a^{4} + 4 a^{3} + a^{2} + 7 a + \left(4 a^{4} + 2 a^{3} + 4 a + 1\right)\cdot 11 + \left(a^{3} + 3 a^{2} + 9 a + 5\right)\cdot 11^{2} + \left(4 a^{3} + 4 a^{2} + 9 a\right)\cdot 11^{3} + \left(9 a^{4} + 3 a^{3} + 8 a^{2} + a + 7\right)\cdot 11^{4} +O(11^{5})\) 7a^4 + 4a^3 + a^2 + 7a + (4a^4 + 2a^3 + 4a + 1)11 + (a^3 + 3a^2 + 9a + 5)11^2 + (4a^3 + 4a^2 + 9a)11^3 + (9a^4 + 3a^3 + 8a^2 + a + 7)11^4+O(11^5)
$r_{ 5 }$	$=$	\( 8 a^{4} + 6 a^{3} + 3 a^{2} + 5 a + 1 + \left(8 a^{4} + 7 a^{3} + 10 a^{2} + a + 10\right)\cdot 11 + \left(8 a^{4} + 4 a^{3} + 8 a^{2} + 9 a + 3\right)\cdot 11^{2} + \left(5 a^{4} + 5 a^{3} + 4 a^{2} + 5 a + 8\right)\cdot 11^{3} + \left(10 a^{4} + 3 a\right)\cdot 11^{4} +O(11^{5})\) 8a^4 + 6a^3 + 3a^2 + 5a + 1 + (8a^4 + 7a^3 + 10a^2 + a + 10)11 + (8a^4 + 4a^3 + 8a^2 + 9a + 3)11^2 + (5a^4 + 5a^3 + 4a^2 + 5a + 8)11^3 + (10a^4 + 3a)*11^4+O(11^5)
$r_{ 6 }$	$=$	\( a^{4} + 10 a^{3} + 3 a + 3 + \left(7 a^{4} + 5 a^{3} + 8 a^{2} + a\right)\cdot 11 + \left(3 a^{4} + 8 a^{3} + 9 a^{2} + 9 a + 5\right)\cdot 11^{2} + \left(8 a^{4} + 3 a^{3} + 4 a^{2} + 9 a + 9\right)\cdot 11^{3} + \left(9 a^{4} + 6 a^{3} + 4 a^{2} + 8 a + 2\right)\cdot 11^{4} +O(11^{5})\) a^4 + 10a^3 + 3a + 3 + (7a^4 + 5a^3 + 8a^2 + a)11 + (3a^4 + 8a^3 + 9a^2 + 9a + 5)11^2 + (8a^4 + 3a^3 + 4a^2 + 9a + 9)11^3 + (9a^4 + 6a^3 + 4a^2 + 8a + 2)*11^4+O(11^5)
$r_{ 7 }$	$=$	\( a^{4} + 2 a^{3} + a^{2} + 9 a + 10 + \left(3 a^{4} + a^{3} + 5 a^{2} + 3 a + 4\right)\cdot 11 + \left(6 a^{4} + 9 a^{3} + 3 a^{2} + 5 a + 8\right)\cdot 11^{2} + \left(7 a^{3} + 4 a^{2} + 4 a\right)\cdot 11^{3} + \left(3 a^{4} + 2 a^{3} + 4 a^{2} + 3\right)\cdot 11^{4} +O(11^{5})\) a^4 + 2a^3 + a^2 + 9a + 10 + (3a^4 + a^3 + 5a^2 + 3a + 4)11 + (6a^4 + 9a^3 + 3a^2 + 5a + 8)11^2 + (7a^3 + 4a^2 + 4a)11^3 + (3a^4 + 2a^3 + 4a^2 + 3)*11^4+O(11^5)
$r_{ 8 }$	$=$	\( 8 a^{4} + 7 a^{3} + 3 a^{2} + 5 a + 7 + \left(7 a^{4} + 8 a^{3} + a^{2} + a + 5\right)\cdot 11 + \left(8 a^{4} + 8 a^{3} + 2 a^{2} + 4 a + 6\right)\cdot 11^{2} + \left(4 a^{4} + 3 a^{3} + 2 a^{2} + 9 a + 9\right)\cdot 11^{3} + \left(9 a^{4} + 9 a^{3} + 7 a + 9\right)\cdot 11^{4} +O(11^{5})\) 8a^4 + 7a^3 + 3a^2 + 5a + 7 + (7a^4 + 8a^3 + a^2 + a + 5)11 + (8a^4 + 8a^3 + 2a^2 + 4a + 6)11^2 + (4a^4 + 3a^3 + 2a^2 + 9a + 9)11^3 + (9a^4 + 9a^3 + 7a + 9)*11^4+O(11^5)
$r_{ 9 }$	$=$	\( 6 a^{4} + a^{3} + 6 a^{2} + 4 a + 4 + \left(4 a^{4} + 5 a^{3} + 7 a^{2} + 9 a + 6\right)\cdot 11 + \left(a^{4} + 2 a^{2} + 9 a\right)\cdot 11^{2} + \left(4 a^{4} + 5 a^{3} + 5 a^{2} + 7 a + 6\right)\cdot 11^{3} + \left(8 a^{4} + 8 a^{3} + 4 a^{2} + 3 a + 4\right)\cdot 11^{4} +O(11^{5})\) 6a^4 + a^3 + 6a^2 + 4a + 4 + (4a^4 + 5a^3 + 7a^2 + 9a + 6)11 + (a^4 + 2a^2 + 9a)11^2 + (4a^4 + 5a^3 + 5a^2 + 7a + 6)11^3 + (8a^4 + 8a^3 + 4a^2 + 3a + 4)*11^4+O(11^5)
$r_{ 10 }$	$=$	\( 2 a^{4} + 8 a^{3} + 5 a^{2} + a + 2 + \left(3 a^{4} + 7 a^{2} + 6 a + 2\right)\cdot 11 + \left(6 a^{4} + a^{3} + 3 a^{2} + 6 a + 4\right)\cdot 11^{2} + \left(5 a^{4} + 5 a^{3} + 8 a^{2} + 4 a + 6\right)\cdot 11^{3} + \left(2 a^{3} + 9 a^{2} + 3 a + 1\right)\cdot 11^{4} +O(11^{5})\) 2a^4 + 8a^3 + 5a^2 + a + 2 + (3a^4 + 7a^2 + 6a + 2)11 + (6a^4 + a^3 + 3a^2 + 6a + 4)11^2 + (5a^4 + 5a^3 + 8a^2 + 4a + 6)11^3 + (2a^3 + 9a^2 + 3a + 1)11^4+O(11^5)