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How to solve $x^{T}Ax = 0$?

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#polynomials #quadratics #quadratic-forms #real-algebraic-geometry #quadrics
95
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Convexity of abs of quadratic form

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#convex-analysis #convex-optimization #quadratic-forms
31
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How to prove this inequality that i found while proving convergence of steepest descent for quadratic case

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#inequality #eigenvalues-eigenvectors #convex-analysis #quadratic-forms #gradient-descent
935
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Maximum/Minimum of a quadratic form on the unit sphere

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#linear-algebra #matrices #eigenvalues-eigenvectors #quadratic-forms
70
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Convexity of root

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#convex-analysis #quadratic-forms
49
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Convexity of the root of a complicated term

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#convex-analysis #quadratic-forms #convex-cone
72
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Solve a quadratic form equation on a field with characteristic 2

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#linear-algebra #algorithms #quadratic-forms
108
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Solving $x^2 + py^2 = 4z^3$ with a fixed $z$

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#elementary-number-theory #algebraic-number-theory #diophantine-equations #problem-solving #quadratic-forms
211
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Solve $x^TAx=k$ with $k=$cte?

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#matrices #quadratics #quadratic-forms #ellipsoids
100
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Quadratic form of nonlinear differential equations

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#linear-algebra #matrix-calculus #quadratic-forms #nonlinear-system
55
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Inner products and norms

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#linear-algebra #normed-spaces #inner-products #quadratic-forms
43
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Is the intersection of these null cones non-trivial?

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#quadratic-forms #quadrics
175
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Is there a name for "positive-semidefinite" quadratic forms when the base field is not $\mathbb R$?

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#terminology #quadratic-forms #bilinear-form #positive-semidefinite
2.8k
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What is the Lipschitz constant of a quadratic form?

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#quadratic-forms
22
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Reference for $SO_Q$ maximal in $SL_n$

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#group-theory #number-theory #quadratic-forms #linear-groups

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