Results 51 to 60 of about 2,108,594 (166)

Hearing the Serre Invariant of a Compact p‐Adic Analytic Manifold

open access: yesMathematische Nachrichten, Volume 299, Issue 10, Page 3126-3138, October 2026.
ABSTRACT Using a previous novel way of defining kernel functions for Laplacian integral operators on a compact p$p$‐adic analytic manifold X$X$, one such operator Δ0s$\Delta _0^s$ with s∈R$s\in \mathbb {R}$ is applied to hearing the Serre invariant i(X)$i(X)$ by showing that a wavelet eigenvalue (with the wavelet having small support) is always ...
Patrick Erik Bradley   +1 more
wiley   +1 more source

Quasi-abelian and quasi-solvable regular semigroups

open access: yesLe Matematiche, 1996
In this note quasi-abelian semigroups are studied and it is proved that they form an e-variety of orthodox semigroups. More, quasi-abelian regular Bruck-Reilly monoids are characterized as extensions of monoids which are (reverse) semidirect products of ...
Brunetto Piochi
doaj  

A weakly non-abelian decay channel

open access: yesJournal of High Energy Physics
We investigate non-abelian branes in curved space. We discuss solutions to the equations of motion of the transverse scalars when they are constant along the world-volume directions and obey an 𝔰𝔲(2) or an 𝔰𝔲(2) ⊕ 𝔰𝔲(2) algebra. Motivated by the membrane
Vincent Menet, Alessandro Tomasiello
doaj   +1 more source

Mixed motives and linear forms in the Catalan constant

open access: yesJournal of the London Mathematical Society, Volume 114, Issue 4, October 2026.
Abstract We first give a geometric construction of a two‐dimensional mixed motive over Q${\mathbb {Q}}$ with the Catalan constant G=1−1/32+1/52−1/72+⋯${\mathbf {G}}=1-1/3^2+1/5^2-1/7^2+\cdots$ as a period. We then use this motive to obtain a supply of linear forms in 1 and G${\mathbf {G}}$.
Payman Eskandari   +2 more
wiley   +1 more source

Bordered Floer homology, handlebody detection, and compressing diffeomorphisms

open access: yesJournal of the London Mathematical Society, Volume 114, Issue 4, October 2026.
Abstract We show that, up to connected sums with integer homology L$L$‐spaces, bordered Floer homology detects handlebodies, as well as whether a mapping class extends over a given handlebody or compression body. Using this, we combine ideas of Casson–Long with the theory of train tracks to give an algorithm using bordered Floer homology to detect ...
Akram Alishahi, Robert Lipshitz
wiley   +1 more source

bk$b^k$‐Algebroids and the variety of foliation jets

open access: yesJournal of the London Mathematical Society, Volume 114, Issue 4, October 2026.
Abstract We introduce and classify singular foliations of bk+1$b^{k+1}$‐type, which formalize the properties of vector fields that are tangent to a submanifold W⊂M$W \subset M$ to order k$k$. When W$W$ is a hypersurface, these structures are Lie algebroids generalizing the bk+1$b^{k+1}$‐tangent bundles introduced by Scott.
Francis Bischoff   +2 more
wiley   +1 more source

Discrete Wilson Lines in F-Theory

open access: yesAdvances in High Energy Physics, 2011
F-theory models are constructed where the 7 -brane has a nontrivial fundamental group. The base manifolds used are a toric Fano variety and a smooth toric threefold coming from a reflexive polyhedron.
Volker Braun
doaj   +1 more source

Optimal bounds for local volumes of threefold singularities

open access: yesJournal of the London Mathematical Society, Volume 114, Issue 4, October 2026.
Abstract We establish an optimal upper bound for local volumes of Gorenstein canonical non‐hypersurface threefold singularities. Specifically, we show that a klt threefold singularity with local volume at least 9 is either a hypersurface singularity or a quotient singularity.
Yuchen Liu
wiley   +1 more source

A criterion for an abelian variety to be non-simple [PDF]

open access: yes, 2017
We give a criterion in terms of period matrices for an arbitrary polarized abelian variety to be non-simple.
Rojas, A. M., Lange, H., Auffarth, R.
core   +1 more source

Characteristic‐free normalized Nash blowup of toric varieties

open access: yesJournal of the London Mathematical Society, Volume 114, Issue 4, October 2026.
Abstract We introduce conditions on cones of normal toric varieties under which the polyhedron defining the normalized Nash blowup does not depend on the characteristic of the base field. As a consequence, we deduce several results on the resolution of singularities properties of normalized Nash blowups.
Federico Castillo   +3 more
wiley   +1 more source

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