Results 121 to 130 of about 14,418,431 (251)

Equivariant Brauer groups and cohomology

open access: yesJournal of Algebra, 2006
Let \(\Gamma\) be a group, \(K\) a \(\Gamma\)-field, i.e., a field on which \(\Gamma\) acts by automorphisms, and \(H^2(\Gamma;K^*)\) the second cohomology group of \(\Gamma\) with coefficients in the multiplicative group \(K^*\) of \(K\) (viewed as a \(\Gamma\)-module).
Cegarra, A.M., Garzón, A.R.
openaire   +1 more source

Psychotropic medication and the fetal brain

open access: yesThe Journal of Physiology, EarlyView.
Abstract figure legend Brain region changes linked to in‐utero psychotropic exposure. Abstract Medications known to cross the blood–brain barrier (psychotropic medications) are commonly prescribed to women during pregnancy, often for the management of mental illness.
Oliver Gale‐Grant, Tomoki Arichi
wiley   +1 more source

Rational Singularities and the Brauer Group

open access: yesJournal of Algebra, 1993
The authors present two examples of Brauer group calculations. First, they exhibit a local normal two dimensional domain \(R\), which is the local ring of an ordinary double point on a quartic in \(\mathbb{P}^ 3 (\mathbb{C})\) which has trivial divisor class group while its completion has class group of order 2 and the kernel \(B(K/R)\) of the map from
Demeyer, F., Ford, T., Miranda, R.
openaire   +1 more source

Rational points on even‐dimensional Fermat cubics

open access: yesTransactions of the London Mathematical Society, Volume 13, Issue 1, December 2026.
Abstract We show that even‐dimensional Fermat cubic hypersurfaces are rational over any field of characteristic not equal to three, by constructing explicit rational parameterizations with polynomials of low degree. As a byproduct of our rationality constructions, we obtain estimates for the number of their rational points over a number field and ...
Alex Massarenti
wiley   +1 more source

The Brauer Group of a Cocommutative Coalgebra

open access: yesJournal of Algebra, 1995
Let \(R\) be a cocommutative coalgebra. The authors define the notion of an \(R\)-coalgebra \(D\), and an Azumaya \(R\)-coalgebra. To do this, they develop definitions of the cocenter of a coalgebra, the cocommutator coalgebra of a coalgebra map, and of coseparability of a coalgebra.
Torrecillas, B.   +2 more
openaire   +2 more sources

How to Conduct a Multi‐Domain Systematic (Literature) Review? Guidelines Using The Lotus Protocol

open access: yesPsychology &Marketing, Volume 43, Issue 6, Page 1297-1326, June 2026.
ABSTRACT Complex challenges increasingly demand multidisciplinary research across intersecting knowledge domains. However, existing systematic (literature) review protocols offer limited guidance and tend to confine scholars to single‐domain or single‐intersection reviews.
Bart J. A. van Bueren   +6 more
wiley   +1 more source

THE REAL GRADED BRAUER GROUP

open access: yesThe Quarterly Journal of Mathematics, 2019
AbstractWe introduce a version of the Brauer–Wall group for Real vector bundles of algebras (in the sense of Atiyah) and compare it to the topological analogue of the Witt group. For varieties over the reals, these invariants capture the topological parts of the Brauer–Wall and Witt groups.
Karoubi, Max, Weibel, Charles
openaire   +2 more sources

Symmetry lost: A modal ontological argument for atheism?

open access: yesNoûs, Volume 60, Issue 2, Page 313-327, June 2026.
Abstract The modal ontological argument for God's existence faces a symmetry problem: a seemingly equally plausible reverse modal ontological argument can be given for God's nonexistence. Here, we argue that there are significant asymmetries between the modal ontological argument and its reverse that render the latter more compelling than the former ...
Peter Fritz   +2 more
wiley   +1 more source

How Happy Are You With Your Relationship? Validation of the German Couple Satisfaction Index‐4

open access: yesPersonal Relationships, Volume 33, Issue 2, June 2026.
ABSTRACT Assessing relationship satisfaction—as an outcome, predictor, or control variable—is almost mandatory in studies on romantic relationships. This research was aimed at testing the psychometric properties of the German version of the Couple Satisfaction Index‐4 (GCSI‐4) by obtaining validity evidence based on internal structure, measurement ...
Robert Körner, Iris K. Gauglitz
wiley   +1 more source

The Affect, Context, and Target (ACT) Framework: A systematic and narrative review of emotions and collective action across democratic‐authoritarian regimes and tight‐loose cultures

open access: yesPolitical Psychology, Volume 47, Issue 3, June 2026.
Abstract Drawing on research from the past 30 years, this systematic and narrative review introduces the Affect, Context, and Target (ACT) Framework and synthesizes findings on how emotions shape collective action across different cultural and political contexts. Specifically, it examines the cultures and regimes studied, the types of emotions involved,
Özden Melis Uluğ   +5 more
wiley   +1 more source

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