Results 21 to 30 of about 3,600 (65)

Stable equivalence relations on 4‐manifolds

open access: yesProceedings of the London Mathematical Society, Volume 131, Issue 5, November 2025.
Abstract Kreck's modified surgery gives an approach to classifying smooth 2n$2n$‐manifolds up to stable diffeomorphism, that is, up to connected sum with copies of Sn×Sn$S^n \times S^n$. In dimension 4, we use a combination of modified and classical surgery to study various stable equivalence relations which we compare to stable diffeomorphism.
Daniel Kasprowski   +2 more
wiley   +1 more source

Motivic p$p$‐adic tame cohomology

open access: yesBulletin of the London Mathematical Society, Volume 57, Issue 10, Page 3194-3210, October 2025.
Abstract We construct a comparison functor between (A1$\mathbf {A}^1$‐local) tame motives and (□¯${\overline{\square }}$‐local) log‐étale motives over a field k$k$ of positive characteristic. This generalizes Binda–Park–Østvær's comparison for the Nisnevich topology.
Alberto Merici
wiley   +1 more source

Stems and Spectral Sequences

open access: yes, 2010
We introduce the category Pstem[n] of n-stems, with a functor P[n] from spaces to Pstem[n]. This can be thought of as the n-th order homotopy groups of a space.
Adams   +14 more
core   +1 more source

Regional Determinants of Attitudes Toward Immigrants in Germany

open access: yesJournal of Regional Science, Volume 65, Issue 3, Page 780-817, June 2025.
ABSTRACT Attitudes toward immigrants play a crucial role in voting behavior. Such attitudes are shaped by individual characteristics, but also by the environment. This paper examines the role of regional factors in Germany. We use individual‐level survey data and district‐level administrative data.
Julia Peter, Silke Uebelmesser
wiley   +1 more source

Social Clauses in Free Trade Agreements: An Efficient Tool to Improve Labour Standards?

open access: yesThe World Economy, Volume 48, Issue 6, Page 1251-1281, June 2025.
ABSTRACT This paper aimed at measuring the effect of labour provisions in free trade agreements on level of labour standards. After the failure of WTO negotiations, we observed a rapid development of preferential trade agreements, including different types of labour clauses.
Rémi Bazillier, Arslan Tariq Rana
wiley   +1 more source

Phonon-assisted radiofrequency absorption by gold nanoparticles resulting in hyperthermia

open access: yes, 2015
It is suggested that in gold nanoparticles (GNPs) of about 5 nm sizes used in the radiofrequency (RF) hyperthermia, an absorption of the RF photon by the Fermi electron occurs with involvement of the longitudinal acoustic vibrational mode (LAVM), the ...
A Leifert   +42 more
core   +1 more source

Feigin–Odesskii brackets associated with Kodaira cycles and positroid varieties

open access: yesProceedings of the London Mathematical Society, Volume 130, Issue 5, May 2025.
Abstract We establish a link between open positroid varieties in the Grassmannians G(k,n)$G(k,n)$ and certain moduli spaces of complexes of vector bundles over Kodaira cycle Cn$C^n$, using the shifted Poisson structure on the latter moduli spaces and relating them to the standard Poisson structure on G(k,n)$G(k,n)$.
Zheng Hua, Alexander Polishchuk
wiley   +1 more source

Micropatterning of Confined Surfaces with Polymer Brushes by Two‐Photon‐Initiated Reversible Addition–Fragmentation Chain‐Transfer Polymerization

open access: yesSmall Science, Volume 5, Issue 1, January 2025.
Two‐photon‐initiated reversible addition–fragmentation chain‐transfer (2PRAFT) polymerization enables the modification of surfaces with polymer brushes with defined micropattern and chemistry. Compared to other preceding techniques, like digital light processing‐based photoinduced electron transfer–RAFT or direct UV laser writing, 2PRAFT is capable of ...
Stefan Helfert   +10 more
wiley   +1 more source

Plasmon‐driven molecular scission

open access: yesNanophotonics, Volume 13, Issue 26, Page 4683-4721, December 2024.
Abstract Plasmon‐driven photocatalysis offers a unique means of leveraging nanoscale light–matter interactions to convert photon energy into chemical energy in a chemoselective and regioselective manner under mild reaction conditions. Plasmon‐driven bond cleavage in molecular adsorbates represents a critical step in virtually all plasmon‐mediated ...
Hui Wang
wiley   +1 more source

Parabolic Catalan numbers count flagged Schur functions and their appearances as type A Demazure characters (key polynomials)

open access: yes, 2017
Fix an integer partition lambda that has no more than n parts. Let beta be a weakly increasing n-tuple with entries from {1,..,n}. The flagged Schur function indexed by lambda and beta is a polynomial generating function in x_1, .., x_n for certain ...
Proctor, Robert A., Willis, Matthew J.
core   +1 more source

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