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How to write the symmetric Hessian matrix for a log function?

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#quadratic-forms #taylor-expansion
488
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Symmetric part of A contributes to quadratic form

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#linear-algebra #matrices #quadratic-forms #symmetry
353
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Vieta Jumping and Hurwitz 1907

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#number-theory #diophantine-equations #quadratic-forms #vieta-jumping
79
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Order of the sum of elements of the inverse of a matrix

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#linear-algebra #matrices #inverse #quadratic-forms
39
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Is the following inequality correct?

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#matrices #inequality #quadratic-forms #conditional-expectation
53
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Solution of quadratic diophantine equations

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#diophantine-equations #quadratic-forms #pell-type-equations
96
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Matrix of quadratic form (in Serre's general notion)?

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#linear-algebra #number-theory #arithmetic #quadratic-forms
215
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How can I find values for which a given expression gives a perfect square?

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#number-theory #diophantine-equations #quadratics #quadratic-forms
741
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Compute the dimension of the space of quadratic forms

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#linear-algebra #quadratic-forms
317
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Finding the matrix of a quadratic form

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#calculus #linear-algebra #matrices #quadratics #quadratic-forms
2.8k
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Express a quadratic form in three variable in the format $x^tAx$ using a substitution $x=Py$

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#linear-algebra #quadratic-forms
394
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Homework question on quadratic forms and change of coordinates

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#linear-algebra #matrices #quadratic-forms
1k
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Bilinear maps and functions of the form $(x,y) \mapsto ux^2 + 2vxy + wy^2$

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#linear-algebra #quadratic-forms #multilinear-algebra #bilinear-form
103
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Quadratic form of Kroenecker products of skew-symmetric matrices

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#linear-algebra #quadratic-forms #control-theory #graph-laplacian #kronecker-product
64
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Quadratic Form - find a minimal scalar $m \in \Bbb R$ such that $q(x,y,z) \le m(x^2+y^2+z^2)$

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#linear-algebra #quadratic-forms #bilinear-form

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