List questions from quadratic-forms

Published on 03 Nov 2015 - 10:42

461

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Writing an expression as a sum of squares

Published on 06 Nov 2015 - 3:23

170

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Definition of equivalence of quadratic forms.

Published on 08 Nov 2015 - 19:17

144

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solution of quadratic equation n unknown

Published on 09 Nov 2015 - 13:48

2.7k

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Diagonalisation of a quadratic form.

Published on 09 Nov 2015 - 14:36

167

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Is $x^TAy$ convex or concave, for $x,y$ not identically equivalent?

Published on 10 Nov 2015 - 1:50

230

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Quadratic form and spectral theorems

Published on 12 Nov 2015 - 22:09

100

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When is $SO(m,n)$ simple as a Lie group? What are the Zariski and Euclidean components?

Published on 29 Mar 2026 - 13:44

197

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Prove a binary quadratic equation has specific number of solutions

Published on 28 Mar 2026 - 16:07

84

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Show $p$ prime s.t. $p \not\equiv 1 \mod 3$ is represented by the binary quadratic equation.

Published on 28 Mar 2026 - 16:04

97

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How to break the quadratic form $x^TABx + x^TB^TAx$?

Published on 21 Nov 2015 - 1:27

309

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Question about the proof of simultaneous diagonalization of quadratic forms

Published on 21 Nov 2015 - 14:28

176

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Defining a Euclidean Structure on a real vector space.

Published on 28 Mar 2026 - 3:01

635

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Non-trivial kernel if quadratic form is indefinite

Published on 22 Nov 2015 - 21:17

1.8k

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Equivalence of Quadratic Forms that represent the same values

Published on 24 Nov 2015 - 17:14

List Question

Which integer from 1 to 20 does the quadratic form <7,11> over Q represent?

Writing an expression as a sum of squares

Definition of equivalence of quadratic forms.

solution of quadratic equation n unknown

Diagonalisation of a quadratic form.

Is $x^TAy$ convex or concave, for $x,y$ not identically equivalent?

Quadratic form and spectral theorems

When is $SO(m,n)$ simple as a Lie group? What are the Zariski and Euclidean components?

Prove a binary quadratic equation has specific number of solutions

Show $p$ prime s.t. $p \not\equiv 1 \mod 3$ is represented by the binary quadratic equation.

How to break the quadratic form $x^TABx + x^TB^TAx$?

Question about the proof of simultaneous diagonalization of quadratic forms

Defining a Euclidean Structure on a real vector space.

Non-trivial kernel if quadratic form is indefinite

Equivalence of Quadratic Forms that represent the same values

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