4 papers
The frameset of the second-order B-Spline along
Alexander Stangl, Christina Frederick
We give a complete characterization of the zero set of the Zak transform of the second-order B-spline . As a consequence, we obtain a new proof of the Lemvig--Nielsen obstruct…
On the structure of the Gram matrix for Gabor systems generated by B-splines
Martin Buck, Christina Frederick, Kasso Okoudjou +1
We consider the Gabor system generated by a continuous, compactly supported function over the time-frequency lattice generated by…
Multi-agent path-planning in a moving medium via Wasserstein Hamiltonian Flow
Christina Frederick, Haomin Zhou
We present a finite dimensional variational model for multi-agent path-planning in which a group of agents traverses from initial positions to a target distribution in a moving med…
Image reconstruction in quantitative photoacoustic tomography with the simplified approximation
Christina Frederick, Kui Ren, Sarah Vallélian
Photoacoustic tomography (PAT) is a hybrid imaging modality that intends to construct high-resolution images of optical properties of heterogeneous media from measured acoustic dat…