Results 71 to 80 of about 13,820 (216)
Commensurations of the outer automorphism group of a universal Coxeter group [PDF]
, 2021 Yassine Guerch
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Thurston obstructions and tropical geometry
Bulletin of the London Mathematical Society, Volume 57, Issue 8, Page 2404-2428, August 2025.Abstract We describe an application of tropical moduli spaces to complex dynamics. A post‐critically finite branched covering φ$\varphi$ of S2$S^2$ induces a pullback map on the Teichmüller space of complex structures of S2$S^2$; this descends to an algebraic correspondence on the moduli space of point‐configurations of P1$\mathbb {P}^1$.
Rohini Ramadas
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MLD Relations of Pisot Substitution Tilings
, 2010 We consider 1-dimensional, unimodular Pisot substitution tilings with three intervals, and discuss conditions under which pairs of such tilings are locally isomorhphic (LI), or mutually locally derivable (MDL).
Arnoux P +5 more
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The (outer) automorphism group of a group extension
Bulletin of the Belgian Mathematical Society - Simon Stevin, 2002 Let \(G\) be a group, \(K\) a normal subgroup of \(G\) and \(Q\cong G/K\). In other words, \(G\) is an extension of \(K\) by \(Q\). Each automorphism of \(G\) which sends \(K\) into itself induces automorphisms respectively on \(K\) and on \(Q\). This subgroup of \(\Aut(G)\) is denoted by \(\Aut(G,K)\).
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Rigidity and Toledo Invariant for Spin*(8)-Higgs Bundles
MathematicsIn this paper, we study Spin*(8)-Higgs bundles over compact Riemann surfaces, extending the work of Bradlow, García-Prada, and Gothen on SO*(8). The group Spin*(8) is exceptional among classical real forms, as its complexification Spin(8,C) admits ...
Álvaro Antón-Sancho
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General infinitesimal variations of the Hodge structure of ample curves in surfaces
Mathematische Nachrichten, Volume 298, Issue 7, Page 2282-2308, July 2025.Abstract Given a smooth projective complex curve inside a smooth projective surface, one can ask how its Hodge structure varies when the curve moves inside the surface. In this paper, we develop a general theory to study the infinitesimal version of this question in the case of ample curves.
Víctor González‐Alonso, Sara Torelli
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Outer automorphisms of ordered permutation groups [PDF]
Proceedings of the Edinburgh Mathematical Society, 1975 A well-known fact is that every automorphism of the symmetric group on a set must be inner (whether the set is finite or infinite) unless the set has exactly six elements (4, § 13). A long-standing conjecture concerns the analogue of this fact for the group A(S) of all order-preserving permutations of a totally ordered set S.
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Code construction and ensemble holography of simply-laced WZW models at level 1
Journal of High Energy PhysicsWe introduce a code construction for Wess-Zumino-Witten (WZW) models associated with simply-laced affine Lie algebras at level 1. The chiral primary fields of these rational CFTs can be parametrized by the elements of the outer automorphism group of the ...
Nikolaos Angelinos
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Pigment Cell &Melanoma Research, Volume 38, Issue 4, July 2025.ABSTRACT The retinal pigment epithelium (RPE) is a specialised monolayer of pigmented epithelial cells in the outer retina. The extent to which RPE pigmentation is related to that of other tissues remains unclear. We utilised RPE thickness measured using optical coherence tomography (OCT) imaging as an indicator of RPE melanin content.
Thomas H Julian +4 more
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CP-like symmetry with discrete and continuous groups and CP violation/restoration
Journal of High Energy PhysicsWe study physical implications of general CP symmetry including CP-like symmetry. Various scattering amplitudes of CP asymmetry are calculated in CP-like symmetric models.
Hiroshi Ohki, Shohei Uemura
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