Howe duality for the dual pair (SpO(2n1),osp(22))\left(\text{SpO}(2n|1)\,, \mathfrak{osp}(2|2)\right)

This paper establishes an explicit description of the highest weights and joint highest weight vectors for the irreducible representations of the dual pair SpO(2n1)\text{SpO}(2n|1) and osp(22)\mathfrak{osp}(2|2) within the supersymmetric algebra S(C2n1C11)\text{S}(\mathbb{C}^{2n|1} \otimes \mathbb{C}^{1|1}), thereby providing a concrete realization of their Howe duality correspondence.

Roman Lavicka, Allan Merino2026-03-06🔢 math

Enabling stratified sampling in high dimensions via nonlinear dimensionality reduction

This paper proposes a method to enable effective stratified sampling in high-dimensional spaces by using neural active manifolds to identify a one-dimensional latent space that captures model variability, allowing for the creation of input partitions that align with model level sets to significantly reduce variance in uncertainty propagation.

Gianluca Geraci, Daniele E. Schiavazzi, Andrea Zanoni2026-03-06🔢 math