Results 21 to 30 of about 5,690,896 (110)

Nonamenable subforests of multi‐ended quasi‐pmp graphs

Proceedings of the London Mathematical Society, Volume 133, Issue 3, September 2026.
Abstract We prove the a.e. nonamenability of locally finite quasi‐pmp Borel graphs whose every component admits at least three nonvanishing ends with respect to the underlying Radon–Nikodym cocycle. We witness their nonamenability by constructing Borel subforests with at least three nonvanishing ends per component, and then applying Tserunyan and ...
Ruiyuan Chen, Grigory Terlov, Anush Tserunyan   +2 more
wiley   +1 more source

Invariant Measure and Universality of the 2D Yang–Mills Langevin Dynamic

Communications on Pure and Applied Mathematics, Volume 79, Issue 8, Page 1973-2102, August 2026.
ABSTRACT We prove that the Yang–Mills (YM) measure for the trivial principal bundle over the two‐dimensional torus, with any connected, compact structure group, is invariant for the associated renormalised Langevin dynamic. Our argument relies on a combination of regularity structures, lattice gauge‐fixing and Bourgain's method for invariant measures ...
Ilya Chevyrev, Hao Shen
wiley   +1 more source

Coset posets of infinite groups

, 2020
Bux K-U, Welsch C. Coset posets of infinite groups. JOURNAL OF GROUP THEORY. 2020;23(4):593-605.We consider the coset poset associated with the families of proper subgroups, proper subgroups of finite index and proper normal subgroups of finite index. We
Welsch, Cora, Bux, Kai-Uwe
core   +1 more source

The asymptotic Mahler measure of Gaussian periods

Proceedings of the London Mathematical Society, Volume 133, Issue 2, August 2026.
Abstract We construct a sequence of cyclotomic integers (Gaussian periods) of particularly small Mahler measure/height. We study the asymptotics of their Mahler measure as a function of their conductor, to find that the growth rate is the (multivariate) Mahler measure of a family of log Calabi–Yau varieties of increasing dimension.
Gunther Cornelissen, David Hokken, Berend Ringeling   +2 more
wiley   +1 more source

Enhancing Aluminum Matrix Composites With High‐Entropy Alloys: A Study of Mechanical, Thermal, and Electrical Properties via Powder Metallurgy

Nano Select, Volume 7, Issue 5, May 2026.
ABSTRACT This study investigates the incorporation of high‐entropy alloys (HEAs) into aluminum matrix composites (AMCs) via powder metallurgy to improve their mechanical, thermal, and electrical properties. Significant improvements in mechanical performance were observed by systematically varying HEA content from 0% to 30%.
Essam B. Moustafa, Waheed Sami Abushanab, Alqasem M. Alsamawi, Rasha A. Youness   +3 more
wiley   +1 more source

The complex stacking disorder of Fe‐ and Ru‐based 1,1′‐(3,6‐pyrazabolyl)metallocenes

Acta Crystallographica Section B, Volume 82, Issue 1, Page 22-33, February 2026.
The ferrocene Fc(BHpz)2 and the ruthenocene Rc(BHpz)2 belong to the same order–disorder (OD) polytype family and feature a complex stacking disorder, with different ordered and disordered domains in the same crystal.1,1′‐(3,6‐Pyrazabolyl)ferrocene [Fc(BHpz)2] and the corresponding ruthenocene [Rc(BHpz)2] crystallize as order–disorder (OD) structures ...
Berthold Stöger, Alexandr Virovets, Mischa Wenisch   +2 more
wiley   +1 more source

Facies mosaic distribution and stratigraphic disorder of a mixed carbonate–siliciclastic tidal succession

Sedimentology, Volume 73, Issue 1, Page 40-82, January 2026.
ABSTRACT Complex stratigraphic arrangements may be generated through lateral facies transitions from the strata of aeolian depositional systems into bordering peritidal deposits. In such scenarios, sedimentary architectural complexity and associated facies heterogeneities are governed by the interplay between autogenic processes inherent to tidal ...
Victor J. P. Hême de Lacotte, Chester H. C. Davies, Briony J. Bowler, Stuart M. Clarke, A. Graham Leslie, Douglas A. Sprinkel   +5 more
wiley   +1 more source

Protracted intercontinental aridification preserved within the early Late Cretaceous strata of the Eastern Gobi Basin, Mongolia

Sedimentology, Volume 73, Issue 1, Page 147-185, January 2026.
ABSTRACT Mongolia's Eastern and Western Gobi Basins preserve a globally significant record of Cretaceous terrestrial vertebrates, yet their biostratigraphic correlations are complicated by a complex geological history. The Eastern Gobi Basin, a northeast‐southwest trending fault‐bounded rift system, includes several minor sub‐basins with distinct ...
Ryan T. Tucker, Michael Ryan King, Puntsag Delgerzaya, William J. Freimuth, Tsogtbaatar Chinzorig, Khishigjav Tsogtbaatar, Ryuji Takasaki, Mototaka Saneyoshi, Alfio Alessandro Chiarenza, Lindsay E. Zanno   +9 more
wiley   +1 more source

MagStREXS, a crystallographic computer program to determine magnetic structures through resonant elastic X‐ray scattering data. I. Fundamental equations

Journal of Applied Crystallography, Volume 58, Issue 5, Page 1688-1699, October 2025.
This article presents the fundamental concepts and equations implemented in the program MagStREXS to determine magnetic structures based on resonant elastic X‐ray scattering diffraction data.Resonant elastic X‐ray scattering (REXS) is an experimental technique that can be highly valuable for studying magnetic structures in certain scenarios.
Pablo J. Bereciartua, Juan Rodríguez-Carvajal, Sonia Francoual   +2 more
wiley   +1 more source

Absolutely continuous Furstenberg measures

Proceedings of the London Mathematical Society, Volume 131, Issue 1, July 2025.
Abstract In this paper, we provide a sufficient condition for a Furstenberg measure generated by a finitely supported measure to be absolutely continuous. Using this, we give completely explicit examples of absolutely continuous Furstenberg measures including examples which are generated by measures which are not symmetric.
Samuel Kittle
wiley   +1 more source