Results 221 to 230 of about 239,074 (309)

Matrix Freedman Inequality for Sub‐Weibull Martingales

open access: yesStat, Volume 14, Issue 4, December 2025.
ABSTRACT In this paper, we establish a matrix Freedman inequality for martingales with sub‐Weibull tails. Under conditional ψα$$ {\psi}_{\alpha } $$ control of the increments, the top eigenvalue admits a non‐asymptotic tail bound with explicit, dimension‐aware constants.
Íñigo Torres
wiley   +1 more source

Trace Element Transport and Deposition During Magmatic Degassing: The Effect on Martian Rocks and Fines

open access: yesJournal of Geophysical Research: Planets, Volume 130, Issue 12, December 2025.
Abstract Martian magmas compositionally resemble those from terrestrial continental hotspot magmatic suites, characterized by low OH and high Cl and S contents. The magmatic gases exsolved from such magmas transport a variety of metal complexes and, upon cooling, precipitate vapor‐deposits into vugs and fractures within rocks and on the surfaces of ...
N. Zimmermann, M. Safari, H. Nekvasil
wiley   +1 more source

Possible evidence of excitonic condensation in a topological insulator. [PDF]

open access: yesProc Natl Acad Sci U S A
Mori R   +7 more
europepmc   +1 more source

A Brief Note on Supercooled Glacial Deep Waters

open access: yesPaleoceanography and Paleoclimatology, Volume 40, Issue 12, December 2025.
Abstract According to hydrographic profiles, approximately 2%–5% of the present‐day deep Southern Ocean contains supercooled waters that are below the freezing point. Which role these supercooled waters may have played under glacial conditions is an open question.
Miho Ishizu   +2 more
wiley   +1 more source

Increasing Streambed Permeability Around Vertical Steps to Enhance Hyporheic Exchange

open access: yesWater Resources Research, Volume 61, Issue 12, December 2025.
Abstract In‐stream structures can be used to promote hyporheic exchange, that is, the exchange of water and solutes between the stream and the underlying streambed. The modification of streambed permeability around these structures has been proposed to enhance their effectiveness in promoting hyporheic exchange.
M. Tajari   +4 more
wiley   +1 more source

Dynamic control of electron correlations in photodoped charge-transfer insulators. [PDF]

open access: yesSci Adv
Rossi TC   +10 more
europepmc   +1 more source

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