Question

Discriminant of homogeneous polynomials

score 584 · Answer 1 · 2026-05-10 15:51:26

584

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Discriminant of homogeneous polynomials

Published on 10 May 2026 - 15:51

score 1.2k · Answer 2 · 2026-04-13 19:26:00

1.2k

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$\frac{2n+3}{n^2+n+1}$ How many integers are there that make an expression an integer?

Published on 13 Apr 2026 - 19:26

score 563 · Answer 3 · 2026-04-17 11:13:40

563

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Given $a$, $b$ are integers with $a > b$ and the two roots $\alpha$, $\beta$ of the equation $3x^2 + 3(a+b)x + 4ab = 0$ satisfy a relation

Published on 17 Apr 2026 - 11:13

score 128 · Answer 4 · 2026-05-10 19:25:19

128

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$\frac{x}{y}+\frac{y}{z}+\frac{z}{x}-3\geq k\left ( \frac{x^{2}+y^{2}+z^{2}}{xy+yz+zx}-1 \right )$

Published on 10 May 2026 - 19:25

score 83 · Answer 5 · 2026-04-10 11:33:50

83

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Discriminant Analysis: the polynomial kernel of Support Vector Machine

Published on 10 Apr 2026 - 11:33

score 1.2k · Answer 6 · 2026-04-13 08:03:50

1.2k

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Information about the discriminant given a quadratic extension of fields

Published on 13 Apr 2026 - 8:03

score 405 · Answer 7 · 2026-04-14 13:20:58

405

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square root in cyclotomic field and discriminant

Published on 14 Apr 2026 - 13:20

score 44 · Answer 8 · 2026-04-14 18:57:36

Solve: The equation $7x^2-(R+13)x+R^2-R-2=0$ has one real root in range (0,1) and one real root in range (1,2). What's the range of R?

score 122 · Answer 9 · 2026-04-15 20:05:28

122

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Solve: $x$, $y$ are real, and $(x-3)^2+(y-3)^2=6$, find the maximum value of $\frac{y+1}{x+2}$

Published on 15 Apr 2026 - 20:05

score 254 · Answer 10 · 2026-05-10 16:08:27

254

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Ellipsoidal Covariance Matrix

Published on 10 May 2026 - 16:08

score 240 · Answer 11 · 2026-03-25 03:03:44

240

Views

Condition on the discriminant of the second derivative of a biquadratic function to be concave upwards

Published on 25 Mar 2026 - 3:03

score 955 · Answer 12 · 2026-03-25 04:43:36

955

Views

Find the range of values of $k$ for which $kx^2 + 8x + k <6$ for all real values of $k$

Published on 25 Mar 2026 - 4:43

score 195 · Answer 13 · 2026-03-25 04:43:51

195

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Find range of values of k for which f(x) <= k for all real values of x

Published on 25 Mar 2026 - 4:43

score 311 · Answer 14 · 2026-03-25 04:41:33

311

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Find all the possible integer values of $a$ such that the equation about $x$: $(a+1)x^2-(a^2+1)x+2a^3-6=0$ has all integer roots

Published on 25 Mar 2026 - 4:41

score 169 · Answer 15 · 2026-03-25 03:01:48

169

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Finding integral basis of $K=\Bbb Q(\theta)$

Published on 25 Mar 2026 - 3:01

List Question

Discriminant of homogeneous polynomials

$\frac{2n+3}{n^2+n+1}$ How many integers are there that make an expression an integer?

Given $a$, $b$ are integers with $a > b$ and the two roots $\alpha$, $\beta$ of the equation $3x^2 + 3(a+b)x + 4ab = 0$ satisfy a relation

$\frac{x}{y}+\frac{y}{z}+\frac{z}{x}-3\geq k\left ( \frac{x^{2}+y^{2}+z^{2}}{xy+yz+zx}-1 \right )$

Discriminant Analysis: the polynomial kernel of Support Vector Machine

Information about the discriminant given a quadratic extension of fields

square root in cyclotomic field and discriminant

Solve: The equation $7x^2-(R+13)x+R^2-R-2=0$ has one real root in range (0,1) and one real root in range (1,2). What's the range of R?

Solve: $x$, $y$ are real, and $(x-3)^2+(y-3)^2=6$, find the maximum value of $\frac{y+1}{x+2}$

Ellipsoidal Covariance Matrix

Condition on the discriminant of the second derivative of a biquadratic function to be concave upwards

Find the range of values of $k$ for which $kx^2 + 8x + k <6$ for all real values of $k$

Find range of values of k for which f(x) <= k for all real values of x

Find all the possible integer values of $a$ such that the equation about $x$: $(a+1)x^2-(a^2+1)x+2a^3-6=0$ has all integer roots

Finding integral basis of $K=\Bbb Q(\theta)$

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