Zobrazeno 1 - 10
of 95
pro vyhledávání: '"Kolb, Daniel"'
Publikováno v:
Conference: International Conference in Central Europe on Computer Graphics, Visualization and Computer Vision 2024
Learning-based analysis of images is commonly used in the fields of mobility and robotics for safe environmental motion and interaction. This requires not only object recognition but also the assignment of certain properties to them. With the help of
Externí odkaz:
http://arxiv.org/abs/2407.17064
Lattices with minimal normalized second moments are designed using a new numerical optimization algorithm. Starting from a random lower-triangular generator matrix and applying stochastic gradient descent, all elements are updated towards the negativ
Externí odkaz:
http://arxiv.org/abs/2401.01799
40 years ago, Conway and Sloane proposed using the highly symmetrical Coxeter-Todd lattice $K_{12}$ for quantization, and estimated its second moment. Since then, all published lists identify $K_{12}$ as the best 12-dimensional lattice quantizer. Sur
Externí odkaz:
http://arxiv.org/abs/2312.00481
Identifying a general quasi-local notion of energy-momentum and angular momentum would be an important advance in general relativity with potentially important consequences for mathematical and astrophysical studies in general relativity. In this pap
Externí odkaz:
http://arxiv.org/abs/2308.10906
Autor:
Khera, Neev, Metidieri, Ariadna Ribes, Bonga, Béatrice, Forteza, Xisco Jiménez, Krishnan, Badri, Poisson, Eric, Pook-Kolb, Daniel, Schnetter, Erik, Yang, Huan
Publikováno v:
Phys. Rev. Lett. 131, no.23, 231401 (2023)
The gravitational waves emitted by a perturbed black hole ringing down are well described by damped sinusoids, whose frequencies are those of quasinormal modes. Typically, first-order black hole perturbation theory is used to calculate these frequenc
Externí odkaz:
http://arxiv.org/abs/2306.11142
Publikováno v:
IEEE Journal on Selected Areas in Information Theory, vol. 4, pp. 16-23, 2023
We give a detailed description of the Voronoi region of the Barnes-Wall lattice $\Lambda_{16}$, including its vertices, relevant vectors, and symmetry group. The exact value of its quantizer constant is calculated, which was previously only known app
Externí odkaz:
http://arxiv.org/abs/2301.06092
We present an algorithm for the exact computer-aided construction of the Voronoi cells of lattices with known symmetry group. Our algorithm scales better than linearly with the total number of faces and is applicable to dimensions beyond 12, which pr
Externí odkaz:
http://arxiv.org/abs/2211.01987
In this second part of a two-part paper, we discuss numerical simulations of a head-on merger of two non-spinning black holes. We resolve the fate of the original two apparent horizons by showing that after intersecting, their world tubes "turn aroun
Externí odkaz:
http://arxiv.org/abs/2104.11344
In classical numerical relativity, marginally outer trapped surfaces (MOTSs) are the main tool to locate and characterize black holes. For five decades it has been known that during a binary merger, a new outer horizon forms around the initial appare
Externí odkaz:
http://arxiv.org/abs/2104.11343
Publikováno v:
Phys. Rev. Lett. 127, 181101 (2021)
We resolve the fate of the two original apparent horizons during the head-on merger of two non-spinning black holes. We show that following the appearance of the outer common horizon and subsequent inter-penetration of the original horizons, they con
Externí odkaz:
http://arxiv.org/abs/2104.10265