Zobrazeno 1 - 10
of 6 326
pro vyhledávání: '"Devriendt A"'
Autor:
Uzeirbegovic, E., Martin, G., Kaviraj, S., Jackson, R. A., Kraljic, K., Dubois, Y., Pichon, C., Devriendt, J., Peirani, S., Silk, J., Yi, S. K.
We introduce a new concept -- termed "planarity" -- which aims to quantify planar structure in galaxy satellite systems without recourse to the number or thickness of planes. We use positions and velocities from the Gaia EDR3 to measure planarity in
Externí odkaz:
http://arxiv.org/abs/2411.17813
Autor:
Devriendt, Karel
This article introduces and studies a new class of graphs motivated by discrete curvature. We call a graph resistance nonnegative if there exists a distribution on its spanning trees such that every vertex has expected degree at most two in a random
Externí odkaz:
http://arxiv.org/abs/2410.07756
Autor:
Devriendt, Ronan, Poujade, Olivier
Classical molecular-dynamics simulations (CMDS) have been conducted to investigate the non-Maxwellian behavior of a weakly coupled plasma submitted to the inverse bremsstrahlung heating of laser irradiation. It is the so called Langdon effect. It has
Externí odkaz:
http://arxiv.org/abs/2410.04945
Autor:
Beckmann, Ricarda S., Dubois, Yohan, Volonteri, Marta, Dong-Paez, Chi An, Periani, Sebastien, Piotrowska, Joanna M, Martin, Garreth, Kraljic, Katharina, Devriendt, Julien, Peirani, Christophe, Yi, Sukyoung K
Astrophysical black holes (BHs) have two fundamental properties: mass and spin. While the mass-evolution of BHs has been extensively studied, much less work has been done on predicting the distribution of BH spins. In this paper we present the spin e
Externí odkaz:
http://arxiv.org/abs/2410.02875
Autor:
Kang, Cheonsu, Kimm, Taysun, Han, Daniel, Katz, Harley, Devriendt, Julien, Slyz, Adrianne, Teyssier, Romain
Star formation is a key process that governs the baryon cycle within galaxies, but how it controls their growth remains elusive due to modeling uncertainties. To understand the impact of star formation models on galaxy evolution, we perform cosmologi
Externí odkaz:
http://arxiv.org/abs/2407.12090
Autor:
Devriendt, Karel
Kemeny's constant is an invariant of discrete-time Markov chains, equal to the expected number of steps between two states sampled from the stationary distribution. It appears in applications as a concise characterization of the mixing properties of
Externí odkaz:
http://arxiv.org/abs/2405.20300
We consider toric maximum likelihood estimation over the field of Puiseux series and study critical points of the likelihood function using tropical methods. This problem translates to finding the intersection points of a tropical affine space with a
Externí odkaz:
http://arxiv.org/abs/2404.10567
Autor:
Sanati, Mahsa, Martin-Alvarez, Sergio, Schober, Jennifer, Revaz, Yves, Slyz, Adrianne, Devriendt, Julien
Publikováno v:
A&A 690, A59 (2024)
The true nature of primordial magnetic fields (PMFs) and their role in the formation of galaxies still remains elusive. To shed light on these unknowns, we investigate their impact by varying two sets of properties: (i) accounting for the effect of P
Externí odkaz:
http://arxiv.org/abs/2403.05672
Discrete curvatures are quantities associated to the nodes and edges of a graph that reflect the local geometry around them. These curvatures have a rich mathematical theory and they have recently found success as a tool to analyze networks across a
Externí odkaz:
http://arxiv.org/abs/2402.18203
Autor:
Coscia, Michele, Devriendt, Karel
Recently, the first author proposed a measure to calculate Pearson correlations for node values expressed in a network, by taking into account distances or metrics defined on the network. In this technical note, we show that using an arbitrary choice
Externí odkaz:
http://arxiv.org/abs/2402.09489