List questions from quadratic-forms

Published on 10 Jun 2013 - 14:19

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Any integer can be written as $x^2+4y^2$

Published on 14 Jun 2013 - 6:38

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Number of solutions of a positive integral quadratic form is finite?

Published on 14 Jun 2013 - 13:15

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Matrix of quadratic form has to be symmetric?

Published on 15 Jun 2013 - 8:18

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Quadratic form $\mathbb{R}^n$ homogeneous polynomial degree $2$

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Convergence in distribution of a quadratic form

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Question on quadratic forms

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Where does the theory of quadratic forms fail in characteristic 2?

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Why do we refer to certain self-adjoint operators as positive/positive definite as opposed to nonnegative/positive?

Published on 30 Jun 2013 - 1:33

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Minimum of a Quadratic Form $\mathbf v^T \mathbf A \mathbf v$

Published on 30 Jun 2013 - 18:46

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show that the function $z = 2x^2 + y^2 +2xy -2x +2y +2$ is greater than $-3$

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diagonalize quadratic form

Published on 07 Jul 2013 - 14:25

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How to quickly tell that a quadratic only has a single root?

Published on 08 Jul 2013 - 18:22

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Sum of squares of dependent Gaussian random variables

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Quadratic ternary forms

Published on 14 Jul 2013 - 16:59

List Question

Real part of quadratic form

Any integer can be written as $x^2+4y^2$

Number of solutions of a positive integral quadratic form is finite?

Matrix of quadratic form has to be symmetric?

Quadratic form $\mathbb{R}^n$ homogeneous polynomial degree $2$

Convergence in distribution of a quadratic form

Question on quadratic forms

Where does the theory of quadratic forms fail in characteristic 2?

Why do we refer to certain self-adjoint operators as positive/positive definite as opposed to nonnegative/positive?

Minimum of a Quadratic Form $\mathbf v^T \mathbf A \mathbf v$

show that the function $z = 2x^2 + y^2 +2xy -2x +2y +2$ is greater than $-3$

diagonalize quadratic form

How to quickly tell that a quadratic only has a single root?

Sum of squares of dependent Gaussian random variables

Quadratic ternary forms

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