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15
105
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Cauchy Schwarz Inequality for Vectors - Quadratic form Clarification

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#vectors #inner-products #quadratic-forms #cauchy-schwarz-inequality #discriminant
121
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Rank of a matrix using quadratic forms

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#linear-algebra #matrix-rank #quadratic-forms #representations-by-quadratic-forms
155
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Citation for the result of variance of quadratic form

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#normal-distribution #variance #quadratic-forms #multivariate-statistical-analysis
54
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When can a set of 4 quadratic equations with 4 unknowns be solved?

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#polynomials #systems-of-equations #quadratic-forms #nonlinear-system
118
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$x^2-px+p^2-4<0$ for at least one $x<0$

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#functions #inequality #quadratics #quadratic-forms #interval-arithmetic
112
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Conflicting definitions of Quadratic form in Hoffman Kunze linear algebra

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#linear-algebra #quadratic-forms
95
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Is there a $p$-adic analogue of the Hodge index theorem and Hodge--Riemann relations?

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#algebraic-geometry #reference-request #complex-geometry #quadratic-forms #hodge-theory
72
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Proof that real quadratic forms are always diagonalisable

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#linear-algebra #matrices #proof-explanation #diagonalization #quadratic-forms
125
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Find $q(e_1)$ and $q(e_2)$ from $q(x)=x.Ax$

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#quadratic-forms
125
Views

How to find eigenvalues and eigenvectors from a quadratic formula?

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#linear-algebra #linear-transformations #quadratic-forms
90
Views

How to show that $x^t A x $ is divisible by $2$ where $A$ is an $n \times n$ symmetric matrix with all its diagonal entries are zero?

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#linear-algebra #inner-products #quadratic-forms #symmetric-matrices #bilinear-form
24
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Positive definite isotropic ternary space

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#quadratic-forms
59
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Completing the square when the pivot are zeros.

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#quadratic-forms #gaussian-elimination #lu-decomposition
56
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Does a quadratic function with an SPD matrix must be strongly convex?

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#convex-analysis #quadratic-forms
128
Views

Efficiency of general solution to "primes of the form $x^2+ny^2$"

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#number-theory #prime-numbers #diophantine-equations #computational-complexity #quadratic-forms

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