Convergence of Fourier series, and generalised functions Flashcards
1
Q
Define a δ-convergent sequence.
A

2
Q
Define the Dirac delta function δ(x).
A

3
Q
Define a piecewise continuous function.
A

4
Q
Define a piecewise smooth function.
A

5
Q
Define a test function.
A

6
Q
Define when two generalised functions g(x) and h(x) are said to be equal?
A

7
Q
What is the integral of f(x), and some, as yet unspecified, function g’(x)?
A

8
Q
Show the following.

A

9
Q
Show the following.

A

10
Q
Show the following.

A

11
Q
Show the following.

A

12
Q
Show the following.

A

13
Q
What is the general method for proving identities of generalised functions?
A
Integrate both sides of the proposed identity with respect to an arbitrary test function f ∈ K to show equality.