List questions from quadratic-forms

Published on 25 Aug 2020 - 15:59

53

Views

Characterize hypersurface given by $\det(\sum_{k=1}^n x_k A_k) = 0$

Published on 28 Mar 2026 - 16:56

170

Views

When is $3 x^2 + 2 x$ a square

Published on 30 Aug 2020 - 16:25

288

Views

Derivative a Matrix quadratic form with respect to a inner variable? Lyapunov function and pasivity control.

Published on 23 Feb 2026 - 10:16

20

Views

Investigating rational roots using the Hasse-Minkowski theorem.

Published on 02 Sep 2020 - 12:25

27

Views

Elementary genus theory question.

Published on 03 Sep 2020 - 15:09

155

Views

Derivative of Quadratic Form of a 3-tensor

Published on 03 Sep 2020 - 20:19

46

Views

Integral of square root of quadric form, over a sphere

Published on 01 Apr 2026 - 2:55

245

Views

Non-Linear Forms for all Prime Numbers

Published on 25 Mar 2026 - 9:22

116

Views

Find the kernel of the bilinear associate to the quadratic form $Q(x_1 e_1 + \dots + x_n e_n ) = a_1 x_1 ^{2} + \dots + a_k x_k ^{2} $

Published on 30 Mar 2026 - 1:31

236

Views

Determining positive/negative definite of quadratic form using Hessian matrix method?

Published on 30 Mar 2026 - 13:20

71

Views

Is a connection between a symmetry of quadric and its asymptotic cone?

Published on 31 Mar 2026 - 20:07

65

Views

Collection of Quadratic Forms of class number less than 5

Published on 29 Mar 2026 - 4:41

467

Views

Solving a factorized quadratic matrix equation

Published on 21 Sep 2020 - 19:14

248

Views

Class Group of the Class Number $3$ with their elements given explicitly

Published on 29 Mar 2026 - 4:48

List Question

Existence of a solution of a quadratic form inequality?

Characterize hypersurface given by $\det(\sum_{k=1}^n x_k A_k) = 0$

When is $3 x^2 + 2 x$ a square

Derivative a Matrix quadratic form with respect to a inner variable? Lyapunov function and pasivity control.

Investigating rational roots using the Hasse-Minkowski theorem.

Elementary genus theory question.

Derivative of Quadratic Form of a 3-tensor

Integral of square root of quadric form, over a sphere

Non-Linear Forms for all Prime Numbers

Find the kernel of the bilinear associate to the quadratic form $Q(x_1 e_1 + \dots + x_n e_n ) = a_1 x_1 ^{2} + \dots + a_k x_k ^{2} $

Determining positive/negative definite of quadratic form using Hessian matrix method?

Is a connection between a symmetry of quadric and its asymptotic cone?

Collection of Quadratic Forms of class number less than 5

Solving a factorized quadratic matrix equation

Class Group of the Class Number $3$ with their elements given explicitly

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