Zobrazeno 1 - 10
of 4 408
pro vyhledávání: '"Fitzsimmons, P"'
Autor:
Dobson, Matthew M., Schwamb, Megan E., Fitzsimmons, Alan, Schambeau, Charles, Beck, Aren, Denneau, Larry, Erasmus, Nicolas, Heinze, A. N., Shingles, Luke J., Siverd, Robert J., Smith, Ken W., Tonry, John L., Weiland, Henry, Young, David. R., Kelley, Michael S. P., Lister, Tim, Bernardinelli, Pedro H., Ferrais, Marin, Jehin, Emmanuel, Fedorets, Grigori, Benecchi, Susan D., Verbiscer, Anne J., Murtagh, Joseph, Duffard, Rene, Gomez, Edward, Chatelain, Joey, Greenstreet, Sarah
Centaurs are small Solar System objects on chaotic orbits in the giant planet region, forming an evolutionary continuum with the Kuiper belt objects and Jupiter-family comets. Some Centaurs are known to exhibit cometary activity, though unlike comets
Externí odkaz:
http://arxiv.org/abs/2407.14410
Autor:
Robinson, James E., Fitzsimmons, Alan, Young, David R., Bannister, Michele, Denneau, Larry, Erasmus, Nicolas, Lawrence, Amanda, Siverd, Robert J., Tonry, John
Sparse and serendipitous asteroid photometry obtained by wide field surveys such as the Asteroid Terrestrial-impact Last Alert System (\ATLAS) is a valuable resource for studying the properties of large numbers of small Solar System bodies. We have g
Externí odkaz:
http://arxiv.org/abs/2404.04657
In this paper, we describe a lightweight Python framework that provides integrated learning and verification of neural Lyapunov functions for stability analysis. The proposed tool, named LyZNet, learns neural Lyapunov functions using physics-informed
Externí odkaz:
http://arxiv.org/abs/2403.10013
While there has been increasing interest in using neural networks to compute Lyapunov functions, verifying that these functions satisfy the Lyapunov conditions and certifying stability regions remain challenging due to the curse of dimensionality. In
Externí odkaz:
http://arxiv.org/abs/2403.10007
We study the problem of fair allocation of indivisible items when agents have ternary additive valuations -- each agent values each item at some fixed integer values $a$, $b$, or $c$ that are common to all agents. The notions of fairness we consider
Externí odkaz:
http://arxiv.org/abs/2403.00943
Autor:
Meng, Yiming, Zhou, Ruikun, Mukherjee, Amartya, Fitzsimmons, Maxwell, Song, Christopher, Liu, Jun
Solving nonlinear optimal control problems is a challenging task, particularly for high-dimensional problems. We propose algorithms for model-based policy iterations to solve nonlinear optimal control problems with convergence guarantees. The main co
Externí odkaz:
http://arxiv.org/abs/2402.10119
Physics-Informed Neural Network Lyapunov Functions: PDE Characterization, Learning, and Verification
We provide a systematic investigation of using physics-informed neural networks to compute Lyapunov functions. We encode Lyapunov conditions as a partial differential equation (PDE) and use this for training neural network Lyapunov functions. We anal
Externí odkaz:
http://arxiv.org/abs/2312.09131
Autor:
Gillan, A. Fraser, Fitzsimmons, Alan, Denneau, Larry, Siverd, Robert J., Smith, Ken W., Tonry, John L., Young, David R.
Jupiter-family Comets (JFCs) exhibit a wide range of activity levels and mass-loss over their orbits. We analyzed high-cadence observations of 42 active JFCs with the wide-field Asteroid Terrestrial-impact Last Alert System (ATLAS) survey in 2020-202
Externí odkaz:
http://arxiv.org/abs/2312.06817
Autor:
Tang, Nan, Liyanage, W. L. N. C., Montoya, Sergio A., Patel, Sheena, Quigley, Lizabeth J., Grutter, Alexander J., Fitzsimmons, Michael R., Sinha, Sunil, Borchers, Julie A., Fullerton, Eric E., DeBeer-Schmitt, Lisa, Gilbert, Dustin A.
Publikováno v:
Advanced Materials, 2300416 (2023)
Magnetic skyrmions exhibit unique, technologically relevant pseudo-particle behaviors which arise from their topological protection, including well-defined, three-dimensional dynamic modes that occur at microwave frequencies. During dynamic excitatio
Externí odkaz:
http://arxiv.org/abs/2311.05469
Autor:
Kareta, Theodore, Thomas, Cristina, Li, Jian-Yang, Knight, Matthew M., Moskovitz, Nicholas, Rozek, Agata, Bannister, Michele T., Ieva, Simone, Snodgrass, Colin, Pravec, Petr, Ryan, Eileen V., Ryan, William H., Fahnestock, Eugene G., Rivkin, Andrew S., Chabot, Nancy, Fitzsimmons, Alan, Osip, David, Lister, Tim, Sarid, Gal, Hirabayashi, Masatoshi, Farnham, Tony, Tancredi, Gonzalo, Michel, Patrick, Wainscoat, Richard, Weryk, Rob, Burrati, Bonnie, Pittichova, Jana, Ridden-Harper, Ryan, Tan, Nicole J., Tristram, Paul, Brown, Tyler, Bonavita, Mariangela, Burgdorf, Martin, Khalouei, Elahe, Longa, Penelope, Rabus, Markus, Sajadian, Sedighe, Jorgensen, Uffe Graae, Dominik, Martin, Kikwaya, Jean-Baptiste, Epifani, Elena Mazzotta, Dotto, Elisabetta, Deshapriya, J. D. Prasanna, Hasselmann, Pedro H., Dall'Ora, Massimo, Abe, Lyu, Guillot, Tristan, Mekarnia, Djamel, Agabi, Abdelkrim, Bendjoya, Philippe, Suarez, Olga, Triaud, Amaury, Gasparetto, Thomas, Gunther, Maximillian N., Kueppers, Michael, Merin, Bruno, Chatelain, Joseph, Gomez, Edward, Usher, Helen, Stoddard-Jones, Cai, Bartnik, Matthew, Bellaver, Michael, Chetan, Brenna, Dugan, Emma, Fallon, Tori, Fedewa, Jeremy, Gerhard, Caitlyn, Jacobson, Seth A., Painter, Shane, Peterson, David-Michael, Rodriguez, Joseph E., Smith, Cody, Sokolovsky, Kirill V., Sullivan, Hannah, Townley, Kate, Watson, Sarah, Webb, Levi, Trigo-Rodrıguez, Josep M., Llenas, Josep M., Perez-Garcıa, Ignacio, Castro-Tirado, A. J., Vincent, Jean-Baptiste, Migliorini, Alessandra, Lazzarin, Monica, La Forgia, Fiorangela, Ferrari, Fabio, Polakis, Tom, Skiff, Brian
The impact of the DART spacecraft into Dimorphos, moon of the asteroid Didymos, changed Dimorphos' orbit substantially, largely from the ejection of material. We present results from twelve Earth-based facilities involved in a world-wide campaign to
Externí odkaz:
http://arxiv.org/abs/2310.12089