Skip to main content
Self-teaching worker's user avatar
Self-teaching worker's user avatar
Self-teaching worker's user avatar
Self-teaching worker
  • Member for 10 years, 6 months
  • Last seen more than 6 years ago
  • The Piemont-Liguria Ocean
4 votes
Accepted

Can we calculate this product explicitely?

4 votes

One to one function between [0,1] and [0,2]: How to prove or disprove?

3 votes

Most ambiguous and inconsistent phrases and notations in maths

3 votes

An axiomatic treatment of hyperbolic trigonometry?

3 votes
Accepted

Show that $(1 + \mathcal{O}(\epsilon))(1 + \mathcal{O}(\epsilon)) = (1 + \mathcal{O}(\epsilon)) . $

3 votes

Helmholtz theorem

2 votes

Show that $\nabla\cdot\left(\dfrac{\mathbf{e}_r}{r^2}\right)=4\pi\delta(\mathbf{r})$ using the divergence theorem.

2 votes

Integral of an unbounded function as a solution of $\nabla^2\boldsymbol{A}=-\mu_0\boldsymbol{J}$

1 vote

Integral of an unbounded function as a solution of $\nabla^2\boldsymbol{A}=-\mu_0\boldsymbol{J}$

1 vote

Mathematical meaning of certain integrals in physics

1 vote

Helmholtz theorem

1 vote

A commutation between curl and integral

1 vote

Undecidability and completeness

1 vote

Argument principle and Abel-Plana formula

0 votes

Argument principle and Abel-Plana formula

0 votes

Definitions of Open Set and Topological Space

0 votes

Foci of ellipse and distance c from center question?

0 votes

Definitions of Boolean algebras

0 votes
Accepted

$\partial_{x_j}\partial_{x_i}\int_{\mathbb{R}^n}k(x,y)d\mu_y=\int_{\mathbb{R}^n}\partial_{x_j}\partial_{x_i}k(x,y)d\mu_y$ under some assumptions

0 votes

Knowing a scalar field from its Laplacian and gradient