Skip to main content
mathematics-and-caffeine's user avatar
mathematics-and-caffeine's user avatar
mathematics-and-caffeine's user avatar
mathematics-and-caffeine
  • Member for 3 years, 10 months
  • Last seen this week
  • Maths
6 votes
2 answers
934 views

Prof gave us wrong definition of convexity?

4 votes
1 answer
102 views

Total differentiation, is this true: $D(Df(a))(a) = f$?

4 votes
3 answers
403 views

Proof for volume of n-ball with radius 1

4 votes
1 answer
65 views

Calculate $\lim_{j \rightarrow \infty} \int_0^j (1+\frac{x}{j})^j e^{-\pi x}dx$

4 votes
1 answer
74 views

Projection is a covering map iff the topology is discrete

3 votes
1 answer
182 views

Is this a sub-manifold? $M=\{(x,y,z)\in\mathbb{R} \,\,|\,\, xy-z^2=1, \, x+z=2\}$

2 votes
1 answer
118 views

Conservative edgeweights, minimal path tree characterization

2 votes
1 answer
89 views

Understanding our prof's definition of P vs NP

2 votes
2 answers
66 views

$\int_K |x|^m |y|^n dx dy$

2 votes
1 answer
95 views

How to proof $\int_{(0,\infty)} \int_{(0,\infty)} |\sin x| \,\, e^{-xy} \,\, dx \,\, dy < \infty$

2 votes
2 answers
106 views

Why do I get a different Laurent series than Taylor series?

2 votes
0 answers
74 views

Fundamental group of mapping torus: Question about proof

2 votes
2 answers
114 views

Residue calculus: Integrals go to zero

2 votes
1 answer
142 views

Vague convergence of dirac measure

1 vote
1 answer
154 views

Details for calculating the fundamental group of mapping torus (in detail)

1 vote
1 answer
84 views

Prove that these two definitions of convex are equivalent [duplicate]

1 vote
0 answers
151 views

Residue calculus: Integrals vanish

1 vote
1 answer
63 views

Does this exercise assume path-connectedness? (Topology)

1 vote
1 answer
36 views

$\int_Z z^2 x^2 = \int_{-1}^1 \int_0^{2\pi} \int_0^1 z^2 r^2 \sin(\theta)^2 \,\,dr \,d\theta \, dz$

1 vote
0 answers
41 views

Log-normal distribution: Why is this a density function?

1 vote
0 answers
113 views

Does $1/(1+z^2)$ have an antiderivative?

1 vote
0 answers
43 views

Proving homotopy invariance of the contour integral

1 vote
1 answer
100 views

How to apply maximum modulus principle?

1 vote
1 answer
92 views

Laurent series with 2 poles

1 vote
1 answer
56 views

Inequality for holomorphic function on compact set

1 vote
1 answer
37 views

Expected value exists because it has an integrable lower bound?

1 vote
0 answers
36 views

Using the probability measure as the random variable also. Possible?

1 vote
1 answer
692 views

Proof for $2SAT$ in $P$

1 vote
1 answer
105 views

Galois Group of $(x^2-a)^2-b$

1 vote
2 answers
82 views

Function $f$ with $|f|$ is Lebesgue integrable but $f$ isn't locally Lebesgue integrable