Results 61 to 70 of about 311,330 (338)

Locally Quasi-Convex Compatible Topologies on a Topological Group

Axioms, 2015
For a locally quasi-convex topological abelian group (G,τ), we study the poset \(\mathscr{C}(G,τ)\) of all locally quasi-convex topologies on (G) that are compatible with (τ) (i.e., have the same dual as (G,τ) ordered by inclusion.
Lydia Außenhofer, Dikran Dikranjan, Elena Martín-Peinador   +2 more
doaj   +1 more source

Proper actions and proper invariant metrics

, 2008
We show that if a (locally compact) group $G$ acts properly on a locally compact $\sigma$-compact space $X$ then there is a family of $G$-invariant proper continuous finite-valued pseudometrics which induces the topology of $X$.
Abels, Herbert, Manoussos, Antonios, Noskov, Gennady   +2 more
core   +2 more sources

Locally compact sofic groups

Israel Journal of Mathematics, 2022
We introduce the notion of soficity for locally compact groups and list a number of open problems.
Bowen, Lewis, Burton, Peter
openaire   +3 more sources

Rethinking plastic waste: innovations in enzymatic breakdown of oil‐based polyesters and bioplastics

FEBS Open Bio, EarlyView.
Plastic pollution remains a critical environmental challenge, and current mechanical and chemical recycling methods are insufficient to achieve a fully circular economy. This review highlights recent breakthroughs in the enzymatic depolymerization of both oil‐derived polyesters and bioplastics, including high‐throughput protein engineering, de novo ...
Elena Rosini, Nicolò Antonelli, Gianluca Molla   +2 more
wiley   +1 more source

Characterisation of Locally Compact Abelian Groups Having Spectral Synthesis

Forum of Mathematics, Sigma
In this paper we solve a long-standing problem which goes back to Laurent Schwartz’s work on mean periodic functions. Namely, we completely characterize those locally compact Abelian groups having spectral synthesis. So far a characterization theorem was
László Székelyhidi
doaj   +1 more source

Riggings of Locally Compact Abelian Groups [PDF]

, 2012
8 pages, XXV Workshop Geometrical Methods in Physics, Bialowieza ...
Gadella, Manuel, Gómez, Fernando, Wickramasekara, Sujeev   +2 more
openaire   +4 more sources

Evaluation of the Potential of Laser Shock Peening Compared with Cold Expansion for Improving Fatigue Resistance of Riveted Lap Joints of Aerospace Grade 7175 Al Alloy

Advanced Engineering Materials, EarlyView.
This study investigates laser shock peening for enhancing fatigue performance of riveted aerospace aluminum joints. A comparative approach with cold expansion combines fatigue testing and synchrotron X‐ray methods. Integrating mechanical testing with residual stress and strain characterization provides insights into how different treatments affect the ...
Ogün Baris Tapar, David Osman Busse, Maximilian Sprengel, Domenico Furfari, Marc‐André Nielsen, Guilherme Abreu Faria, Jérémy Epp   +6 more
wiley   +1 more source

Exactness of locally compact groups

, 2017
We give some new characterizations of exactness for locally compact second countable groups. In particular, we prove that a locally compact second countable group is exact if and only if it admits a topologically amenable action on a compact Hausdorff ...
Adams, Anantharaman-Delaroche, Anantharaman-Delaroche, Anantharaman-Delaroche, Baum, Brown, Chabert, Chen, Connes, Cornulier, Cowling, Deprez, Dong, Gromov, Guentner, Guentner, Guentner, Haagerup, Haagerup, Higson, Higson, Kirchberg, Kirchberg, Kraus, Osajda, Ozawa, Paterson, Paterson, Pedersen, Pisier, Roe, Roe, Roe, Roe, Sako, Skandalis, Struble, Tu, Willett, Williams, Yu   +40 more
core   +1 more source

Adaptable Tile‐Based Pneumatic Origami through Structurally Coupled Localized Actuation

Advanced Engineering Materials, EarlyView.
This article presents tile‐based pneumatic origami structures with rigid tiles and flexible fabric creases, achieving adaptable properties including morphing shape, selective multistability, and tunable stiffness. Independently pressurized folding bladders at each crease enable structurally coupled localized actuation of origami structures.
Tiantian Li, Jonathan Luntz, Diann Brei
wiley   +1 more source

Isometry groups of proper metric spaces

, 2012
Given a locally compact Polish space X, a necessary and sufficient condition for a group G of homeomorphisms of X to be the full isometry group of (X,d) for some proper metric d on X is given.
Niemiec, Piotr
core   +1 more source