J. Delgado

collaborators

4 papers

math.FA2026

Sharp Time-Decay Estimates for Fractional Heat Semigroups Associated with Polynomial Anharmonic Oscillators

Julio Delgado, Vishvesh Kumar, Shyam Swarup Mondal

We investigate fractional heat semigroups generated by a class of anharmonic oscillators on $R^{n}$ of the form $H_{P, Q} = Q (D) + P (x),$ where $P \in P_{2 k}$ and…

physics.comp-ph2026

On the Fast Fourier Transform on SU(2)

Julio Delgado, Alejandro UmaÃ±a

The special unitary group SU(2) plays a fundamental role in the description of symmetries in quantum mechanics, theoretical physics, and spherical signal processing. In this paper,…

math.FA2026

On the differentiability of the Sobolev norm of $W^{k, 1} (M)$ on compact Riemannian manifolds

Duvan Cardona, Julio Delgado, Andres Felipe MuÃ±oz-Tello

In this work we study the differentiability for the Sobolev norm of $W^{k, 1} (M)$ in the sense of GÃ¢teaux , where $(M, g)$ is an arbitrary closed Riemannian manifold.

math.FA2025

Schatten-von Neumann classes of tensors of invariant operators

Julio Delgado, Liliana Posada, Michael Ruzhansky

In this work we study Schatten-von Neumann classes of tensor products of invariant operators on Hilbert spaces. In the first part we first deduce some spectral properties for tenso…

Sharp Time-Decay Estimates for Fractional Heat Semigroups Associated with Polynomial Anharmonic Oscillators

On the Fast Fourier Transform on SU(2)

On the differentiability of the Sobolev norm of Wk,1(M) on compact Riemannian manifolds

Schatten-von Neumann classes of tensors of invariant operators

On the differentiability of the Sobolev norm of $W^{k, 1} (M)$ on compact Riemannian manifolds