1 citations · 1 across the 5 of their papers we have counts for
6 papers
Dynamical low-rank tensor approximations to high-dimensional parabolic problems: existence and convergence of spatial discretizations
Markus Bachmayr, Henrik Eisenmann, André Uschmajew
We consider dynamical low-rank approximations to parabolic problems on higher-order tensor manifolds in Hilbert spaces. In addition to existence of solutions and their stability wi…
The Geometries of Jordan nets and Jordan webs
Arthur Bik, Henrik Eisenmann
A Jordan net (resp. web) is an embedding of a unital Jordan algebra of dimension (resp. ) into the space of symmetric matrices. We study the geome…
Maximum relative distance between real rank-two and rank-one tensors
Henrik Eisenmann, André Uschmajew
It is shown that the relative distance in Frobenius norm of a real symmetric order- tensor of rank two to its best rank-one approximation is upper bounded by $\sqrt{1-(1-1/d)^{d…
Riemannian thresholding methods for row-sparse and low-rank matrix recovery
Henrik Eisenmann, Felix Krahmer, Max Pfeffer +1
In this paper, we present modifications of the iterative hard thresholding (IHT) method for recovery of jointly row-sparse and low-rank matrices. In particular a Riemannian version…
Jordan Algebras of Symmetric Matrices
Arthur Bik, Henrik Eisenmann, Bernd Sturmfels
We study linear spaces of symmetric matrices whose reciprocal is also a linear space. These are Jordan algebras. We classify such algebras in low dimensions, and we study the assoc…
Solving two-parameter eigenvalue problems using an alternating method
Henrik Eisenmann, Yuji Nakatsukasa
We present a new approach to compute selected eigenvalues and eigenvectors of the two-parameter eigenvalue problem. Our method requires computing generalized eigenvalue problems of…