Results 41 to 50 of about 100 (95)
A Simple Algebraic Model for Few-Nucleon Systems in the Presence of Non-Abelian Superselection Rules
Учёные записки Казанского университета: Серия Физико-математические науки, 2017 Traditionally, the dynamics of a quantum physical system is described on the basis of the field models, where the fundamental role is played by the algebra of quantized fields and its automorphisms (forming a compact group).
M.I. Kirillov +2 more
doaj
Fortschritte der Physik, Volume 74, Issue 5, May 2026.ABSTRACT We provide full details of a BV formulation of N=1$\mathcal N=1$ supergravity in 10 dimensions, to all orders in fermions, built from the generalised geometry description of the theory. In contrast to standard treatments, we introduce neither the degrees of freedom corresponding to orthonormal frames for the metric nor the local Lorentz ...
Julian Kupka +2 more
wiley +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
Polymatroidal tilings and the Chow class of linked projective spaces
Bulletin of the London Mathematical Society, Volume 58, Issue 5, May 2026.Abstract Linked projective spaces are quiver Grassmannians of constant dimension one of certain quiver representations, called linked nets, over certain quivers, called Zn$\mathbb {Z}^n$‐quivers. They were recently introduced as a tool for describing schematic limits of families of divisors.
Felipe de Leon, Eduardo Esteves
wiley +1 more source
Endomorphisms of Free Groups That Preserve Automorphic Orbits
Journal of Algebra, 2002 Using classical tools from combinatorial group theory, namely Nielsen transformations and the standard Whitehead graph, it is proved that if an endomorphism, \(\varphi\), of a free group of finite rank preserves a nontrivial automorphic orbit, then \(\varphi\) is actually an isomorphism, which confirms a conjecture of \textit{V. Shpilrain} [Arch.
openaire +1 more source
Automorphisms of the endomorphism algebra of a free module
Linear Algebra and its Applications, 2016 zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Courtemanche, Jordan, Dugas, Manfred
openaire +1 more source
Endomorphism and automorphism structure of direct squares of universal algebras [PDF]
Pacific Journal of Mathematics, 1975 zbMATH Open Web Interface contents unavailable due to conflicting licenses.
openaire +3 more sources
From Endomorphisms to Automorphisms and Back: Dilations and Full Corners [PDF]
Journal of the London Mathematical Society, 2000 When S is a discrete subsemigroup of a discrete group G such that G = S^{-1} S, it is possible to extend circle-valued multipliers from S to G; to dilate (projective) isometric representations of S to (projective) unitary representations of G; and to dilate/extend actions of S by injective endomorphisms of a C*-algebra to actions of G by automorphisms ...
openaire +3 more sources
ENDOMORPHISMS AND AUTOMORPHISMS OF LOCALLY COVARIANT QUANTUM FIELD THEORIES [PDF]
Reviews in Mathematical Physics, 2013 In the framework of locally covariant quantum field theory, a theory is described as a functor from a category of spacetimes to a category of *-algebras. It is proposed that the global gauge group of such a theory can be identified as the group of automorphisms of the defining functor.
openaire +3 more sources
On the Endomorphism Semigroups of Extra-special $p$-groups and Automorphism Orbits
International Journal of Group Theory, 2019 23 ...
Pradhan, Soham Swadhin +1 more
openaire +3 more sources