Results 61 to 70 of about 914 (176)
Journal of Geophysical Research: Atmospheres, Volume 131, Issue 15, 16 August 2026.Abstract Near‐surface wind regimes govern critical Earth system processes including dust mobilization, ocean mixing, and wildfire spread, yet their multi‐decadal evolution under anthropogenic forcing remains poorly constrained. Here we quantify extreme wind frequency changes (1981–2024) using ERA5‐Land reanalysis with a monthly aggregation approach ...
Adil Salhi, Essam Heggy
wiley +1 more source
Surjective isometries of C*-algebras: complex spectrum and periodicity
Concrete OperatorsIn this paper, we are interested in studying surjective isometries of C*-algebras with an emphasis on their complex spectrum. We do not require the isometries to be linear nor the C*-algebras to be unital.
Bénéteau Catherine +6 more
doaj +1 more source
Dually quasi-De Morgan Stone semi-Heyting algebras I. Regularity [PDF]
Categories and General Algebraic Structures with Applications, 2014 This paper is the first of a two part series. In this paper, we first prove that the variety of dually quasi-De Morgan Stone semi-Heyting algebras of level 1 satisfies the strongly blended $lor$-De Morgan law introduced in cite{Sa12}.
Hanamantagouda P. Sankappanavar
doaj
Cardinality and Representation of Stone Relation Algebras
Fundamenta InformaticaePrevious work has axiomatised the cardinality operation in relation algebras, which counts the number of edges of an unweighted graph. We generalise the cardinality axioms to Stone relation algebras, which model weighted graphs, and study the relationships between various axioms for cardinality.
Hitoshi Furusawa, Walter Guttmann
openaire +2 more sources
When AI outputs become documents: Documentation activity in human–AI dialogue
Journal of the Association for Information Science and Technology, Volume 77, Issue 8, Page 1067-1083, August 2026.Abstract Large language models (LLMs) generate texts that increasingly circulate as documents in knowledge infrastructures, yet their documentary status remains theoretically underdetermined. Unlike traditional documents, LLM outputs lack identifiable authorship, stable provenance, or testimonial grounding.
Sascha Donner
wiley +1 more source
F1000ResearchThroughout this paper our study focuses on transformation semigroups. These kinds of semigroups are the corner stone of semigroup theory. This is because every semigroup is isomorphic to transformation semigroup.
Asawer Al-Aadhami, Hala M. Sulaiman
doaj +1 more source
Dually quasi-De Morgan Stone semi-Heyting algebras II. Regularity [PDF]
Categories and General Algebraic Structures with Applications, 2014 This paper is the second of a two part series. In this Part, we prove, using the description of simples obtained in Part I, that the variety $mathbf{RDQDStSH_1}$ of regular dually quasi-De Morgan Stone semi-Heyting algebras of level 1 is the join of the ...
Hanamantagouda P. Sankappanavar
doaj
Constraining the Permeability and Outer‐Rise Hydration at the Central America Margin
Journal of Geophysical Research: Solid Earth, Volume 131, Issue 8, August 2026.Abstract Subduction zones are important drivers of Earth's geochemical evolution; the presence of water within the subduction system has substantial implications for geohazards, including the style of seismicity and the volume of magma generated at arc volcanoes.
D. Douglas +3 more
wiley +1 more source
Gesturing While Writing: An Alternate Perspective on Mimetic Prosody
Critical Quarterly, EarlyView.
Paul Magee
wiley +1 more source
Oxygen Fugacity Buffers and an Interactive Calculator
Geochemistry, Geophysics, Geosystems, Volume 27, Issue 8, August 2026.Abstract Oxygen fugacity buffers are equilibrium phase assemblages that constrain the chemical potential of oxygen. They may be coexisting minerals or fluids, or their metastable extrapolations. Oxygen fugacity values vary as a function of pressure and temperature, such that raw numbers often have little interpretive value.
Michael Anenburg
wiley +1 more source