Notable Question - Badge - Mathematics Stack Exchange

Notable Question

Question with 2,500 views. This badge can be awarded multiple times.

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A problem on field extension

Awarded Nov 25 at 12:39

user12290

1,32512 silver badges23 bronze badges

How to find an unknown parallel side of a trapezium?

Awarded Nov 25 at 12:11

Charlie

1131 silver badge6 bronze badges

Particular integral in complementary function

Awarded Nov 25 at 11:18

jamie

7215 silver badges17 bronze badges

Why using compound interest formula gives (potentially) wrong answer in this instance

Awarded Nov 25 at 11:03

Ross

1331 silver badge6 bronze badges

Find $\int_0^1\frac{\ln^2(1-x)}{x}\ dx$

Awarded Nov 25 at 9:36

Arcturus

8897 silver badges15 bronze badges

Symmetrization and Contraction Principle of Random Variables

Awarded Nov 25 at 9:01

varpi

6174 silver badges17 bronze badges

How to calculate $\int_0^\pi \ln(1+\sin x)\mathrm dx$

Awarded Nov 25 at 9:01

Renascence_5.

5,4691 gold badge30 silver badges72 bronze badges

Why do keyhole contours work?

Awarded Nov 25 at 7:26

K.defaoite

14.4k4 gold badges26 silver badges56 bronze badges

Lower bound of crossing number (minimum) of K7

Awarded Nov 25 at 6:02

Sean

3932 silver badges11 bronze badges

Evaluating $\lim _{x\to 1}\left(\frac{\sqrt[3]{x}-1}{2\sqrt{x}-2}\right)$ [duplicate]

Awarded Nov 25 at 3:02

Saturn

7,41113 gold badges57 silver badges87 bronze badges

Find the degree of the splitting field of $x^6+1$ over $\mathbb{Q}$

Awarded Nov 24 at 23:54

Poperton

6,7469 gold badges109 silver badges215 bronze badges

Average codeword length is the same in any Huffman encoding schemes

Awarded Nov 24 at 23:54

Silvia Rossi

81813 silver badges38 bronze badges

Infinite summation formula for modified Bessel functions of first kind

Awarded Nov 24 at 22:22

chickenNinja123

8495 silver badges22 bronze badges

Muddy Children Puzzle (when more than 2 kids are muddy)

Awarded Nov 24 at 21:10

ultimate cause

1734 silver badges13 bronze badges

Determine $f(r)$ so that the field may be irrotational and solenoidal

Awarded Nov 24 at 17:58

Hammad Tahir

292 silver badges4 bronze badges

How does Maple simplify algebraic expressions?

Awarded Nov 24 at 17:35

TooOldToLearn

4693 silver badges10 bronze badges

Properties of Haar measure

Awarded Nov 24 at 14:46

Grasshopper

4993 silver badges8 bronze badges

How to introduce stress tensor on manifolds?

Awarded Nov 24 at 13:52

Yrogirg

3,75933 silver badges60 bronze badges

Tiling squares with L-Trominoes

Awarded Nov 24 at 13:25

user1524759

931 silver badge4 bronze badges

Monte-Carlo simulation with sampling from uniform distribution

Awarded Nov 24 at 12:42

Frank Merzen

951 gold badge2 silver badges9 bronze badges

What technical books should I read to understand clearly Gödel's theorems and their implications for math?

Awarded Nov 24 at 11:52

Mark Smith

3613 silver badges10 bronze badges

Proof that one-point compactification of $\mathbb{R}^n$ is homeomorphic with $S^n$

Awarded Nov 24 at 11:52

Laurel Turner

5023 silver badges12 bronze badges

determining recognizable or decidable (TM that accepts a TM)

Awarded Nov 24 at 9:30

Metaldream

991 silver badge6 bronze badges

UFD iff PID in Dedekind domain.

Awarded Nov 24 at 8:49

user408858

3,5801 gold badge16 silver badges34 bronze badges

What is the height of a regular polygon?

Awarded Nov 24 at 4:56

Lawrence

1131 silver badge3 bronze badges

Game Theory - Centipede Game

Awarded Nov 24 at 3:52

Jerzy_Gregor

1271 silver badge3 bronze badges

Largest-area shape with diameter 1?

Awarded Nov 24 at 3:52

Ed Pegg

22.2k6 gold badges45 silver badges138 bronze badges

Is every real monic polynomial the characteristic polynomial of a real matrix?

Awarded Nov 24 at 2:12

Eduardo Longa

5,3473 gold badges16 silver badges38 bronze badges

Bayes theorem tricky example

Awarded Nov 24 at 1:23

samsamradas

5633 silver badges9 bronze badges

Exercise: Application of The Uniform Boundedness Principle

Awarded Nov 23 at 23:12

DoubleTrouble

1,3271 gold badge10 silver badges19 bronze badges

About the ratio of the areas of a convex pentagon and the inner pentagon made by the five diagonals

Awarded Nov 23 at 21:23

mathlove

155k10 gold badges127 silver badges315 bronze badges

Contour integration with branch points inside the contour.

Awarded Nov 23 at 20:41

Caran-d'Ache

3,6221 gold badge18 silver badges30 bronze badges

Resolution in first order logic

Awarded Nov 23 at 18:30

statBeginner

2351 gold badge4 silver badges11 bronze badges

need clarification in Hatcher's Algebraic Topology Exercise 1.3.27

Awarded Nov 23 at 17:18

user302934

1,7921 gold badge10 silver badges28 bronze badges

Using Fourier Transform to solve heat equation

Awarded Nov 23 at 17:09

leave2014

4791 gold badge8 silver badges15 bronze badges

Calculating Levi-Civita Connection and Curvature for Euclidean Metric

Awarded Nov 23 at 17:03

Numerical Disintegration

2,30015 silver badges27 bronze badges

Integer $x$ for which $x^4+x^3+x^2+x+1$ is perfect square.

Awarded Nov 23 at 16:18

juantheron

56.5k19 gold badges115 silver badges274 bronze badges

Constructibility of the $17$-gon

Awarded Nov 23 at 15:06

Léreau

3,2661 gold badge16 silver badges39 bronze badges

Why is $\mathrm{Spec}(\mathbb{Z})$ a terminal object in the category of affine schemes?

Awarded Nov 23 at 15:00

Dominic Wynter

6,3291 gold badge17 silver badges56 bronze badges

Strongly Connected Tournament

Awarded Nov 23 at 15:00

Vivid

2871 gold badge4 silver badges12 bronze badges

Compute Casimir operator for $su(n)$ representations via the Weyl formula

Awarded Nov 23 at 14:34

francesco

1431 silver badge8 bronze badges

Error of equally spaced interpolation

Awarded Nov 23 at 14:19

james black

1,98320 silver badges35 bronze badges

Why does this limit equal 0?

Awarded Nov 23 at 13:31

Rory McEwan

5794 silver badges12 bronze badges

Galois group of a non-separable polynomial

Awarded Nov 23 at 9:51

StephenDowning

711 silver badge2 bronze badges

Minimize Frobenius norm with constraints

Awarded Nov 23 at 9:46

ThP

1931 silver badge4 bronze badges

What is the difference between 'formula' and 'function'?

Awarded Nov 23 at 8:33

user516076

2,5011 gold badge15 silver badges40 bronze badges

Cross product and Jacobian

Awarded Nov 23 at 8:22

danny

9667 silver badges18 bronze badges

Right-ray topology: interior, closure and boundary of $I = \mathbb{R} - \mathbb{Q}$

Awarded Nov 23 at 5:18

pabhp

7316 silver badges19 bronze badges

What are the rules for changing indexes and powers in a series?

Awarded Nov 23 at 4:55

sjm23

4193 silver badges12 bronze badges

How many lines are needed to create 6 triangles on W?

Awarded Nov 23 at 4:38

user98235

3914 silver badges14 bronze badges

How to check if an image to image homography is "reasonable" using matrix properties

Awarded Nov 23 at 1:51

Alexander Soare

2712 silver badges13 bronze badges

Superlevel sets of a concave function are convex

Awarded Nov 23 at 0:55

wainwain

1972 silver badges10 bronze badges

$\|f\|_p\to \|f\|_\infty$ under general assumptions

Awarded Nov 22 at 20:56

operatorerror

30k6 gold badges54 silver badges100 bronze badges

Solving $\int_0^{\pi/2} \sin^2\theta \sqrt{1-k^2\sin^2 \theta}d\theta $

Awarded Nov 22 at 20:06

user3563929

3312 silver badges9 bronze badges

Difficult coin weighing puzzle: 14 coins, 1 fake (heavier or lighter), 3 pre-determined weighings

Awarded Nov 22 at 19:49

antkam

15.7k1 gold badge14 silver badges32 bronze badges

Finding the maxima without second derivative test

Awarded Nov 22 at 19:22

minusatwelfth

3772 silver badges10 bronze badges

Help deriving Lax-Wendroff scheme for advection equation $u_t+c(x)u_x = 0$

Awarded Nov 22 at 19:22

italy

1,1112 gold badges18 silver badges30 bronze badges

Laplace Transform of $\int_{0}^{t}u^2e^u\,du$

Awarded Nov 22 at 18:36

Emanuel Camacho

2202 silver badges9 bronze badges

Motivation for this solution to a British olympiad problem

Awarded Nov 22 at 17:08

cool dud

3252 silver badges7 bronze badges

Proof that there exist only 17 Wallpaper Groups (Tilings of the plane)

Awarded Nov 22 at 16:45

NazimJ

3,43010 silver badges20 bronze badges

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