Results 271 to 280 of about 143,594 (316)

Exactness and the topology of the space of invariant random equivalence relations

open access: yesProceedings of the London Mathematical Society, Volume 132, Issue 5, May 2026.
Abstract We characterize exactness of a countable group Γ$\Gamma$ in terms of invariant random equivalence relations (IREs) on Γ$\Gamma$. Specifically, we show that Γ$\Gamma$ is exact if and only if every weak limit of finite IREs is an amenable IRE.
Héctor Jardón‐Sánchez   +3 more
wiley   +1 more source

Serendipity discrete complexes with enhanced regularity. [PDF]

open access: yesCalcolo
Di Pietro DA, Hanot M, Salah M, Salah M.
europepmc   +1 more source

On cohomology of locally profinite sets

open access: yesProceedings of the London Mathematical Society, Volume 132, Issue 5, May 2026.
Abstract We construct a locally profinite set of cardinality ℵω$\aleph _{\omega }$ with infinitely many first cohomology classes of which any distinct finite product does not vanish. Building on this, we construct the first example of a nondescendable faithfully flat map between commutative rings of cardinality ℵω$\aleph _{\omega }$ within Zermelo ...
Ko Aoki
wiley   +1 more source

Structural Mechanism of an Efficacy Photoswitch Targeting the β2‐adrenergic Receptor

open access: yesAngewandte Chemie International Edition, Volume 65, Issue 18, 27 April 2026.
Time‐resolved structures from x‐ray free‐electron laser measurements combined with cellular assays demonstrate how the photoswitchable β‐blocker photoazolol‐1 acts as an efficacy switch of β2‐adrenergic receptor function. Light‐induced ligand repositioning shifts activity from inverse agonism toward neutral antagonism by altering local helical ...
Robin Stipp   +29 more
wiley   +1 more source

Derived category of weak chain U -complexes. [PDF]

open access: yesHeliyon
Yuliawan F   +3 more
europepmc   +1 more source

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