Zobrazeno 1 - 10
of 36 468
pro vyhledávání: '"A, Schaller"'
In this paper, we provide a tutorial overview and an extension of a recently developed framework for data-driven control of unknown nonlinear systems with rigorous closed-loop guarantees. The proposed approach relies on the Koopman operator represent
Externí odkaz:
http://arxiv.org/abs/2411.10359
Understanding the scaling relation between baryonic observables and dark matter halo properties is crucial not only for studying galaxy formation and evolution, but also for deriving accurate cosmological constraints from galaxy surveys. In this pape
Externí odkaz:
http://arxiv.org/abs/2411.03152
Autor:
Harder, Hans, Nüske, Feliks, Philipp, Friedrich M., Schaller, Manuel, Worthmann, Karl, Peitz, Sebastian
This paper explores the integration of symmetries into the Koopman-operator framework for the analysis and efficient learning of equivariant dynamical systems using a group-convolutional approach. Approximating the Koopman operator by finite-dimensio
Externí odkaz:
http://arxiv.org/abs/2411.00905
Autor:
Cerf, Sacha, Dayan, Benjamin, De Ambroggio, Umberto, Kaufmann, Marc, Lengler, Johannes, Schaller, Ulysse
To find a shortest path between two nodes $s_0$ and $s_1$ in a given graph, a classical approach is to start a Breadth-First Search (BFS) from $s_0$ and run it until the search discovers $s_1$. Alternatively, one can start two Breadth-First Searches,
Externí odkaz:
http://arxiv.org/abs/2410.22186
Autor:
McCarthy, Ian G., Amon, Alexandra, Schaye, Joop, Schaan, Emmanuel, Angulo, Raul E., Salcido, Jaime, Schaller, Matthieu, Bigwood, Leah, Elbers, Willem, Kugel, Roi, Helly, John C., Moreno, Victor J. Forouhar, Frenk, Carlos S., McGibbon, Robert J., Ondaro-Mallea, Lurdes, van Daalen, Marcel P.
Energetic feedback processes associated with accreting supermassive black holes can expel gas from massive haloes and significantly alter various measures of clustering on ~Mpc scales, potentially biasing the values of cosmological parameters inferre
Externí odkaz:
http://arxiv.org/abs/2410.19905
We investigate the existence of solutions of reversible and irreversible port-Hamiltonian systems. To this end, we utilize the associated exergy, a function that is composed of the system's Hamiltonian and entropy, to prove global existence in time f
Externí odkaz:
http://arxiv.org/abs/2410.18888
The effect of baryon physics associated with galaxy formation onto the large-scale matter distribution of the Universe is a key uncertainty in the theoretical modelling required for the interpretation of Stage IV cosmology surveys. We use the FLAMING
Externí odkaz:
http://arxiv.org/abs/2410.17109
Autor:
Baker, William M., Lim, Seunghwan, D'Eugenio, Francesco, Maiolino, Roberto, Ji, Zhiyuan, Arribas, Santiago, Bunker, Andrew J., Carniani, Stefano, Charlot, Stephane, de Graaff, Anna, Hainline, Kevin, Looser, Tobias J., Lyu, Jianwei, Rinaldi, Pierluigi, Robertson, Brant, Schaller, Matthieu, Schaye, Joop, Scholtz, Jan, Ubler, Hannah, Williams, Christina C., Willmer, Christopher N. A., Willott, Chris, Zhu, Yongda
We use NIRSpec/MSA spectroscopy and NIRCam imaging to study a sample of 18 massive ($\log\; M_{*}/M_{\odot} \gt 10\;$dex), central quiescent galaxies at $2\leq z \leq 5$ in the GOODS fields, to investigate their number density, star-formation histori
Externí odkaz:
http://arxiv.org/abs/2410.14773
Autor:
Huško, Filip, Lacey, Cedric G., Roper, William J., Schaye, Joop, Briggs, Jemima Mae, Schaller, Matthieu
We present results of cosmological zoom-in simulations of a massive protocluster down to redshift $z\approx4$ (when the halo mass is $\approx10^{13}$ M$_\odot$) using the SWIFT code and the EAGLE galaxy formation model, focusing on supermassive black
Externí odkaz:
http://arxiv.org/abs/2410.09450
The masses of galaxy clusters are commonly measured from X-ray observations under the assumption of hydrostatic equilibrium (HSE). This technique is known to underestimate the true mass systematically. The fiducial FLAMINGO cosmological hydrodynamica
Externí odkaz:
http://arxiv.org/abs/2409.07849