All Questions
Tagged with ca.classical-analysis-and-odes hilbert-spaces
5 questions with no upvoted or accepted answers
5
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0
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186
views
Solutions to holonomic $D$-modules: when are they square-integrable?
I want to apply the theory of $D$-modules to solve operator equations of several variables in the Bargmann space
$$\mathcal H :=\bigg\{\psi \in \mathcal O^\text{an}_{\mathbb{C}^n}\,\,\bigg|\,\,\,\...
2
votes
0
answers
216
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Boundedness of solutions to second order ODE
Let $q(x)$ be a probability density function over $[0,1]$. Let $\lambda > 0$ and $f: [0,1] \to \mathbb{R}$ be any solution to the following ODE:
$$
\lambda f''(x) + q(x) f(x) = 0, \text{for all }x \...
2
votes
0
answers
101
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A specific Schwartz function $f$ on $\mathbb C^2$
Choose a Schwartz function on $\mathbb C$ of the form $f(z)=f(r e^{i\theta})= f_0(r) e^{in\theta}$. Then $$(*) \quad f(e^{i\alpha} z)= e^{in\alpha} f(z), \quad \forall z\in \mathbb C.$$
Now, let $f$ ...
1
vote
0
answers
122
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Algorithm for finding eigenfunctions
I have an $ L^2(\mathbb{R}) $ operator that looks like
$$
\Omega = \int \partial\phi(a, b)\ \ |b, a\rangle \langle b, a |,
$$
where $ \langle x | a, b \rangle = f_a(x - b) e^{x^2/2} $ and $ f_a \in L^...
1
vote
0
answers
136
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A linear operator equation (PDE) with non-monotone term
I'm interested in the existence and/or uniqueness to the following problem. Let $V$ and $H$ be Hilbert spaces and $V \subset H \subset V^*$ form a Gelfand triple.
There is a linear operator $L:{D}(L) ...