Question

Variation of geometrical quantities under infinitesimal deformation of surfaces

score 75 · Answer 1 · 2026-04-12 06:42:24

75

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Variation of geometrical quantities under infinitesimal deformation of surfaces

Published on 12 Apr 2026 - 6:42

score 98 · Answer 2 · 2026-04-13 11:25:33

98

Views

Solving IVP exactly with an epsilon variable

Published on 13 Apr 2026 - 11:25

score 176 · Answer 3 · 2026-04-14 04:46:00

176

Views

Finding leading order approximation to $\frac{d^2y}{dx^2}-\epsilon y=x$

Published on 14 Apr 2026 - 4:46

score 193 · Answer 4 · 2026-04-14 00:34:36

193

Views

Can we approximate a.e. invertible matrices with everywhere invertible matrices in $L^2$ sense?

Published on 14 Apr 2026 - 0:34

score 109 · Answer 5 · 2026-03-25 12:52:36

109

Views

How will fixed point change if the mapping changes?

Published on 25 Mar 2026 - 12:52

score 72 · Answer 6 · 2026-04-11 14:11:32

72

Views

Undetermined coefficients in a perturbative expansion

Published on 11 Apr 2026 - 14:11

score 256 · Answer 7 · 2026-04-12 22:18:08

256

Views

Applying the method of steepest descent to $ \int_{-i \infty}^{i \infty} \frac{\exp{x (t^2 - 2t)}}{t - a}\,dt$ as $x \to \infty$

Published on 12 Apr 2026 - 22:18

score 483 · Answer 8 · 2026-04-13 22:51:09

483

Views

Why is it so important in the method of steepest descent that we follow the steepest descent contour that passes through a saddle point?

Published on 13 Apr 2026 - 22:51

score 30 · Answer 9 · 2026-04-15 00:25:07

30

Views

Show that a wave signal superposed by a perturbed wave signal can be expressed as combined signal.

Published on 15 Apr 2026 - 0:25

score 54 · Answer 10 · 2026-04-16 04:30:34

54

Views

Approximating $z^2(1-(\varepsilon z) + (\varepsilon z)^2) +1 = 0 $ solutions when $\varepsilon \rightarrow 0$

Published on 16 Apr 2026 - 4:30

score 222 · Answer 11 · 2026-04-14 13:03:07

222

Views

Expanding a differential equation in powers of $\epsilon$

Published on 14 Apr 2026 - 13:03

score 66 · Answer 12 · 2026-05-10 20:03:54

66

Views

Find the values of $\epsilon$ at the two pair bifurcation points of the polynomial: $\phi(x,\epsilon):=(x-2)^2(x-3)+\epsilon^2=0$.

Published on 10 May 2026 - 20:03

score 162 · Answer 13 · 2026-05-10 13:51:07

162

Views

How to prove the lower bound of the amount of perturbation on nuclear norm after scaling a matrix?

Published on 10 May 2026 - 13:51

score 80 · Answer 14 · 2026-04-16 10:09:19

80

Views

$D((A+B)^)= D(A^)$ if $B$ is $A$-bounded with $A$-bound $0$

Published on 16 Apr 2026 - 10:09

score 51 · Answer 15 · 2026-05-11 00:33:05

51

Views

How to determine if a nonlinear perturbation introduces chaos to a linear system?

Published on 11 May 2026 - 0:33

List Question

Variation of geometrical quantities under infinitesimal deformation of surfaces

Solving IVP exactly with an epsilon variable

Finding leading order approximation to $\frac{d^2y}{dx^2}-\epsilon y=x$

Can we approximate a.e. invertible matrices with everywhere invertible matrices in $L^2$ sense?

How will fixed point change if the mapping changes?

Undetermined coefficients in a perturbative expansion

Applying the method of steepest descent to $ \int_{-i \infty}^{i \infty} \frac{\exp{x (t^2 - 2t)}}{t - a}\,dt$ as $x \to \infty$

Why is it so important in the method of steepest descent that we follow the steepest descent contour that passes through a saddle point?

Show that a wave signal superposed by a perturbed wave signal can be expressed as combined signal.

Approximating $z^2(1-(\varepsilon z) + (\varepsilon z)^2) +1 = 0 $ solutions when $\varepsilon \rightarrow 0$

Expanding a differential equation in powers of $\epsilon$

Find the values of $\epsilon$ at the two pair bifurcation points of the polynomial: $\phi(x,\epsilon):=(x-2)^2(x-3)+\epsilon^2=0$.

How to prove the lower bound of the amount of perturbation on nuclear norm after scaling a matrix?

$D((A+B)^)= D(A^)$ if $B$ is $A$-bounded with $A$-bound $0$

How to determine if a nonlinear perturbation introduces chaos to a linear system?

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