Question

How can I write $\alpha^2+\alpha{x}+\beta{x}+xy-\beta^2$ as a sum or difference of up to four squares?

score 37 · Answer 1 · 2022-03-19 18:06:38

37

Views

How can I write $\alpha^2+\alpha{x}+\beta{x}+xy-\beta^2$ as a sum or difference of up to four squares?

Published on 19 Mar 2022 - 18:06

score 83 · Answer 2 · 2022-03-22 21:43:16

83

Views

Is every formally real field isomorphic to a subfield of the reals?

Published on 22 Mar 2022 - 21:43

score 122 · Answer 3 · 2026-03-26 11:01:17

122

Views

Find an orthonormal basis and the signature of the quadratic form

Published on 26 Mar 2026 - 11:01

score 60 · Answer 4 · 2022-03-27 14:00:55

60

Views

To find Possible values of combinations of a & b for $a^2 + b^2 = 576$ or any quadratic equation under certain restrictions.

Published on 27 Mar 2022 - 14:00

score 119 · Answer 5 · 2026-03-30 00:17:49

119

Views

Condition for two quadratic equation to have one common root (Simplification)

Published on 30 Mar 2026 - 0:17

score 35 · Answer 6 · 2022-04-06 19:17:05

35

Views

Determine if the form $x_1^2 + x_2^2 -15(x_3^2+x_4^2)$ is isotropic over $\mathbb{Q}$.

Published on 06 Apr 2022 - 19:17

score 82 · Answer 7 · 2022-04-06 20:50:57

82

Views

Calculate Hasse-Minkowski invariant

Published on 06 Apr 2022 - 20:50

score 432 · Answer 8 · 2026-02-23 10:19:32

432

Views

Showing the polarization of (complex) quadratic form is sesquilinear.

Published on 23 Feb 2026 - 10:19

score 55 · Answer 9 · 2026-02-23 10:22:32

55

Views

Is the polarization of quadratic form bounded?

Published on 23 Feb 2026 - 10:22

score 151 · Answer 10 · 2026-03-31 19:44:38

151

Views

MGF of quadratic form $\mathbf{y}^\intercal \mathbf{A} \mathbf{y}$ where $y\sim N_p(\mathbf{\mu},\mathbf{\Sigma})$

Published on 31 Mar 2026 - 19:44

score 131 · Answer 11 · 2022-04-12 20:06:21

131

Views

Matrix of a restriction of a quadratic form

Published on 12 Apr 2022 - 20:06

score 189 · Answer 12 · 2026-03-26 04:51:53

189

Views

Line and plane tangent to a quadric surface

Published on 26 Mar 2026 - 4:51

score 491 · Answer 13 · 2022-04-30 14:36:54

491

Views

isotropic vector-space of a quadratic form

Published on 30 Apr 2022 - 14:36

score 115 · Answer 14 · 2022-05-02 01:15:16

115

Views

Quadratic formula- calculator gives an answer but cannot do it manually

Published on 02 May 2022 - 1:15

score 143 · Answer 15 · 2022-05-03 23:02:44

143

Views

real quadratic fields with 2 ramified primes

Published on 03 May 2022 - 23:02

List Question

How can I write $\alpha^2+\alpha{x}+\beta{x}+xy-\beta^2$ as a sum or difference of up to four squares?

Is every formally real field isomorphic to a subfield of the reals?

Find an orthonormal basis and the signature of the quadratic form

To find Possible values of combinations of a & b for $a^2 + b^2 = 576$ or any quadratic equation under certain restrictions.

Condition for two quadratic equation to have one common root (Simplification)

Determine if the form $x_1^2 + x_2^2 -15(x_3^2+x_4^2)$ is isotropic over $\mathbb{Q}$.

Calculate Hasse-Minkowski invariant

Showing the polarization of (complex) quadratic form is sesquilinear.

Is the polarization of quadratic form bounded?

MGF of quadratic form $\mathbf{y}^\intercal \mathbf{A} \mathbf{y}$ where $y\sim N_p(\mathbf{\mu},\mathbf{\Sigma})$

Matrix of a restriction of a quadratic form

Line and plane tangent to a quadric surface

isotropic vector-space of a quadratic form

Quadratic formula- calculator gives an answer but cannot do it manually

real quadratic fields with 2 ramified primes

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