Results 61 to 70 of about 4,217,963 (196)

On the finite generation of ideals in tensor triangular geometry

Bulletin of the London Mathematical Society, Volume 58, Issue 5, May 2026.
Abstract Inspired by Cohen's characterization of Noetherian commutative rings, we study the finite generation of ideals in tensor triangular geometry. In particular, for an essentially small tensor triangulated category K$\mathcal {K}$ with weakly Noetherian spectrum, we show that every prime ideal in K$\mathcal {K}$ can be generated by finitely many ...
Tobias Barthel
wiley   +1 more source

An efficient modification of the Hestenes-Stiefel nonlinear conjugate gradient method with restart property

Journal of Inequalities and Applications, 2016
The conjugate gradient (CG) method is one of the most popular methods to solve nonlinear unconstrained optimization problems. The Hestenes-Stiefel (HS) CG formula is considered one of the most efficient methods developed in this century. In addition, the
Zabidin Salleh, Ahmad Alhawarat
doaj   +1 more source

Wild conductor exponents of curves

Bulletin of the London Mathematical Society, Volume 58, Issue 5, May 2026.
Abstract We give an explicit formula for wild conductor exponents of plane curves over Qp$\mathbb {Q}_p$ in terms of standard invariants of explicit extensions of Qp$\mathbb {Q}_p$, generalising a formula for hyperelliptic curves. To do so, we prove a general result relating the wild conductor exponent of a simply branched cover of the projective line ...
Harry Spencer
wiley   +1 more source

The Lipschitz condition for the conjugacies of Feigenbaum-like mappings [PDF]

Fundamenta Mathematicae, 1989
Summary: For a map \(f\) in the stable manifold \(W^ s(g)\) of the Feigenbaum function \(g\) the conjugacies \(h\), \(h^{-1}: h\circ f\circ h^{-1}= g\) are Lipschitz continuous maps at points of the Cantor set attractors. Moreover, \(h\) and \(h^{-1}\) occur to be Lipschitz continuous on the whole interval \([-1,1]\) if and only if the products of ...
openaire   +1 more source

The fundamental group of the complement of a generic fiber‐type curve

Journal of the London Mathematical Society, Volume 113, Issue 5, May 2026.
Abstract In this paper, we describe and characterize the fundamental group of the complement of generic fiber‐type curves, that is, unions of (the closure of) finitely many generic fibers of a component‐free pencil F=[f:g]:CP2⤍CP1$F=[f:g]:\mathbb {C}\mathbb {P}^2\dashrightarrow \mathbb {C}\mathbb {P}^1$.
José I. Cogolludo‐Agustín, Eva Elduque   +1 more
wiley   +1 more source

Lifts and vertex pairs in solvable groups [PDF]

, 2010
Suppose $G$ is a $p$-solvable group, where $p$ is odd. We explore the connection between lifts of Brauer characters of $G$ and certain local objects in $G$, called vertex pairs.
James P. Cossey, L. Lewis, Mark
core  

Application of Group‐Theoretical Approaches in Structural Natural Frequency Analyses

International Journal for Numerical Methods in Engineering, Volume 127, Issue 7, 15 April 2026.
ABSTRACT Group theory has profoundly advanced physics and chemistry in systems with symmetries. Yet its use in structural engineering applications has not yet been fully explored beyond the aesthetics of symmetric designs. This work addresses two significant gaps that have limited the broader adoption of group‐theoretic methods in structural vibration ...
Shiyao Sun, Kapil Khandelwal
wiley   +1 more source

Spherical conjugacy classes and involutions in the Weyl group

, 2006
Let G be a simple algebraic group over an algebraically closed field of characteristic zero or positive odd, good characteristic. Let B be a Borel subgroup of G. We show that the spherical conjugacy classes of G intersect only the double cosets of B in G
Carnovale, Giovanna
core   +3 more sources

Tessellation Groups, Harmonic Analysis on Non‐Compact Symmetric Spaces and the Heat Kernel in View of Cartan Convolutional Neural networks

Fortschritte der Physik, Volume 74, Issue 4, April 2026.
ABSTRACT In this paper, we continue the development of the Cartan neural networks programme, launched with three previous publications, by focusing on some mathematical foundational aspects that we deem necessary for our next steps forward. The mathematical and conceptual results are diverse and span various mathematical fields, but the inspiring ...
Pietro Fré, Federico Milanesio, Marcelo Oyarzo, Matteo Santoro, Mario Trigiante   +4 more
wiley   +1 more source

On conjugacy separability of fibre products

, 2017
In this paper we study conjugacy separability of subdirect products of two free (or hyperbolic) groups. We establish necessary and sufficient criteria and apply them to fibre products to produce a finitely presented group $G_1$ in which all finite index ...
Agol, Antolín, Ashot Minasyan, Bass, Baumslag, Baumslag, Baumslag, Bestvina, Borel, Bridson, Bridson, Bumagin, Burillo, Caprace, Chagas, Chagas, Collins, Dahmani, de Cornulier, Deligne, Dyer, Ferov, Formanek, Goryaga, Goryaga, Greendlinger, Grigorchuk, Grossman, Haglund, Hall, Hamilton, Harpe, Kulikova, Lorensen, Lyndon, Mal'cev, Mal'cev, Martino, Martino, Mihaĭlova, Miller, Minasyan, Minasyan, Minasyan, Minasyan, Minasyan, Mostowski, Munkres, Newman, Osin, Remeslennikov, Remeslennikov, Ribes, Rips, Segal, Stebe, Toinet, Truffault, Wehrfritz, Wise, Wise, Wise   +61 more
core   +1 more source