Results 171 to 180 of about 1,525 (223)

Reinforcement Learning for Jump‐Diffusions, With Financial Applications

Mathematical Finance, EarlyView.
ABSTRACT We study continuous‐time reinforcement learning (RL) for stochastic control in which system dynamics are governed by jump‐diffusion processes. We formulate an entropy‐regularized exploratory control problem with stochastic policies to capture the exploration–exploitation balance essential for RL.
Xuefeng Gao, Lingfei Li, Xun Yu Zhou
wiley   +1 more source

A Model of Strategic Sustainable Investment

Mathematical Finance, EarlyView.
ABSTRACT We study a problem of optimal irreversible investment and emission reduction formulated as a nonzero‐sum dynamic game between an investor with environmental preferences and a firm. The game is set in continuous‐time on an infinite‐time horizon.
Tiziano De Angelis, Caio César Graciani Rodrigues, Peter Tankov   +2 more
wiley   +1 more source

Araguainha Dome, Brazil: A polygonal impact structure due to a complex pre‐impact regional structural framework

Meteoritics &Planetary Science, EarlyView.
Abstract We investigated the structural framework of the north–northwestern Paraná Basin in Brazil to test whether the pre‐impact structures in this region may have had any influence on the first‐order formation and morphostructure of the Araguainha impact structure (AIS).
Renato B. Bernardes, Wolf U. Reimold, Roger L. Gibson, Julia B. Curto Ma, Adolfo B. Silva, Natalia Hauser   +5 more
wiley   +1 more source

Visible, near‐, and thermal infrared spectra of asteroid Bennu samples: Relationship to and implications for remote sensing of carbonaceous asteroids

Meteoritics &Planetary Science, EarlyView.
Abstract Remote spectroscopy is used to characterize the mineralogy and infer the history of planetary bodies. Carbonaceous asteroids, such as B‐type (101955) Bennu, represent the earliest stages of planet formation. B types have a blue (negative) spectral slope and comprise <5% of asteroids.
V. E. Hamilton, E. A. Cloutis, R. E. Milliken, P. Haenecour, D. R. Golish, K. J. Domanik, T. J. McCoy, L. P. Keller, A. A. Simon, H. H. Kaplan, C. A. Goodrich, S. A. Sandford, D. Applin, T. Hiroi, D. H. Hill, N. G. Lunning, F. M. McCubbin, S. A. Eckley, C. J. Snead, E. H. Blumenfeld, J. E. Aebersold, C. Schultz, N. Bowles, K. A. Shirley, S. S. Russell, J. J. Barnes, T. J. Zega, D. N. DellaGiustina, A. J. Ryan, D. P. Glavin, J. P. Dworkin, H. C. Connolly Jr., D. S. Lauretta   +32 more
wiley   +1 more source

Global distribution and biogeography of ericoid mycorrhizal fungi

New Phytologist, EarlyView.
Global predictions of local ericoid mycorrhizal fungal richness, its latitudinal trends and environmental predictors. Summary Ericoid mycorrhizal (ErM) fungi play a crucial role across terrestrial ecosystems, forming mutualistic symbiosis with Ericaceae and contributing to soil organic matter dynamics.
Iñaki Odriozola, Tomáš Větrovský, Florian Barbi, Antonín Machac, Priscila Thiago Dobbler, Cristina Turcu, Michael E. Van Nuland, Clara Qin, Toby Kiers, Nadejda A. Soudzilovskaia, Petr Baldrian, Petr Kohout   +11 more
wiley   +1 more source

Phenotypic plasticity is broadly adaptive across an elevation gradient in the Cutleaf Monkeyflower

New Phytologist, EarlyView.
Leaf shape plasticity expression is variable in Mimulus laciniatus. Summary Phenotypic plasticity is a key mechanism by which organisms cope with environmental heterogeneity, but its evolutionary consequences depend on how plastic responses align with the broader adaptive landscape.
Jill M. Love, Kathleen G. Ferris
wiley   +1 more source

Inference on Common Trends in a Cointegrated Nonlinear SVAR

Oxford Bulletin of Economics and Statistics, EarlyView.
ABSTRACT We consider the problem of performing inference on the number of common stochastic trends when data is generated by a cointegrated CKSVAR (a two‐regime, piecewise affine SVAR; Mavroeidis, 2021), using a modified version of the Breitung (2002) multivariate variance ratio test that is robust to the presence of nonlinear cointegration (of a known
James A. Duffy, Xiyu Jiao
wiley   +1 more source

On the notion of the parabolic and the cuspidal support of smooth-automorphic forms and smooth-automorphic representations. [PDF]

Mon Hefte Math
Grobner H, Žunar S.
europepmc   +1 more source

Sclerophyllous structural and chemical traits of mite‐induced galls on Crinodendron patagua (Elaeocarpaceae) leaves

Plant Biology, EarlyView.
Eriophyid mites reprogram the structural and biochemical traits of sclerophyllous leaves in Crinodendron patagua, promoting the formation of nutrient‐rich and protective gall tissues. Abstract Sclerophyllous plants present a suite of traits, including small, leathery leaves with thick cuticles, dense trichomes and sclerified tissues, which are often ...
L. M. Guedes, L. Rodríguez‐Cerda, N. Aguilera, E. Grandón, F. R. Valeriano, J. F. de Lima, J. F. P. de Oliveira, B. G. Ferreira   +7 more
wiley   +1 more source

Spin-Bounded Correlations: Rotation Boxes Within and Beyond Quantum Theory. [PDF]

Commun Math Phys
Aloy A, Galley TD, Jones CL, Ludescher SL, Müller MP.   +4 more
europepmc   +1 more source