Riesz and Green energy on projective spaces

A Anderson, M Dostert, P Grabner, R Matzke… - Transactions of the …, 2023 - ams.org
In this paper we study Riesz, Green and logarithmic energy on two-point homogeneous
spaces. More precisely we consider the real, the complex, the quaternionic and the Cayley …

Riesz energy, L 2 L^2 discrepancy, and optimal transport of determinantal point processes on the sphere and the flat torus

B Borda, P Grabner, RW Matzke - Mathematika, 2024 - Wiley Online Library
Determinantal point processes exhibit an inherent repulsive behavior, thus providing
examples of very evenly distributed point sets on manifolds. In this paper, we study the so …

Optimal measures for multivariate geometric potentials

D Bilyk, D Ferizović, A Glazyrin, RW Matzke… - arXiv preprint arXiv …, 2023 - arxiv.org
We study measures and point configurations optimizing energies based on multivariate
potentials. The emphasis is put on potentials defined by geometric characteristics of sets of …

Lipschitz analysis of generalized phase retrievable matrix frames

R Balan, CB Dock - SIAM Journal on Matrix Analysis and Applications, 2022 - SIAM
The classical phase retrieval problem arises in contexts ranging from speech recognition to
x-ray crystallography and quantum state tomography. The generalization to matrix frames is …

Geodesic Distance Riesz Energy on Projective Spaces

D Bilyk, RW Matzke, J Nathe - arXiv preprint arXiv:2409.16508, 2024 - arxiv.org
We study probability measures that minimize the Riesz energy with respect to the geodesic
distance $\vartheta (x, y) $ on projective spaces $\mathbb {FP}^ d $(such energies arise …

Phase Transitions for the Minimizers of the -Frame Potentials in

R Ben-Av, X Chen, A Goldberger, S Kang… - SIAM Journal on Discrete …, 2024 - SIAM
Given points on the unit circle in and a number, we investigate the minimizers of the
functional. While it is known that each of these minimizers is a spanning set for, less is …

DCACO: an algorithm for designing incoherent redundant matrices

Y Yu, J Peng - Numerical Algorithms, 2023 - Springer
The mutual coherence of a matrix, defined as the maximum absolute value of the normalized
inner-products between different columns, is an important property that characterizes the …

[PDF][PDF] PHASE TRANSITIONS FOR THE MINIMIZERS OF THE pth FRAME POTENTIALS IN R2

RBEN AV, X CHEN, A GOLDBERGER… - arXiv preprint arXiv …, 2022 - academia.edu
Given N points X={xk} N k= 1 on the unit circle in R2 and a number 0≤ p≤∞ we investigate
the minimizers of the functional∑ N k, ℓ= 1|〈 xk, xℓ〉| p. While it is known that each of these …

Phase transitions for frame potentials]{Phase transitions for the minimizers of the frame potentials in

RB Av, X Chen, A Goldberger, S Kang… - arXiv preprint arXiv …, 2022 - arxiv.org
Given $ N $ points $ X=\{x_k\} _ {k= 1}^ N $ on the unit circle in $\mathbb {R}^ 2$ and a
number $0\leq p\leq\infty $ we investigate the minimizers of the functional $\sum_ {k,\ell= 1} …

U (R) Phase Retrieval, Local Normalizing Flows, and Higher Order Fourier Transforms

CB Dock - 2022 - search.proquest.com
The classical phase retrieval problem arises in contexts ranging from speech recognition to
x-ray crystallography and quantum state tomography. The generalization to matrix frames is …