Results 71 to 80 of about 9,623 (179)
W-realization of Lie algebras: application to so(4,2) and Poincare algebras
, 1996 The property of some finite W-algebras to appear as the commutant of a particular subalgebra in a simple Lie algebra G is exploited for the obtention of new G-realizations from a "canonical" differential one.
Barbarin, F., Ragoucy, E., Sorba, P.
core +1 more source
Some rational homology computations for diffeomorphisms of odd‐dimensional manifolds
Journal of Topology, Volume 17, Issue 1, March 2024.Abstract We calculate the rational cohomology of the classifying space of the diffeomorphism group of the manifolds Ug,1n:=#g(Sn×Sn+1)∖int(D2n+1)$U_{g,1}^n:= \#^g(S^n \times S^{n+1})\setminus \mathrm{int}(D^{2n+1})$, for large g$g$ and n$n$, up to degree n−3$n-3$.
Johannes Ebert, Jens Reinhold
wiley +1 more source
Curious patterns of IR symmetry enhancement
Journal of High Energy Physics, 2018 We study several cases of IR enhancements of global symmetry in four dimensions. In particular, we consider a sequence of Spin(n + 4) supersymmetric gauge theories (8 ≥ n ≥ 1) with n vectors and spinor matter with 32 components. We show that the subgroup
Shlomo S. Razamat, Orr Sela, Gabi Zafrir
doaj +1 more source
Subalgebras, subgroups, and singularity
Bulletin of the London Mathematical Society, Volume 56, Issue 1, Page 380-395, January 2024.Abstract This paper is concerned with the noncommutative analog of the normal subgroup theorem for certain groups. Inspired by Kalantar and Panagopoulos (arXiv:2108.02928, 2021, 16), we show that all Γ$\Gamma$‐invariant subalgebras of LΓ$L\Gamma$ and Cr∗(Γ)$C^*_r(\Gamma )$ are (Γ$\Gamma$‐)coamenable.
Tattwamasi Amrutam, Yair Hartman
wiley +1 more source
A time-variant norm constrained interpolation problem arising from relaxed commutant lifting
, 2008 A time-variant analogue of an interpolation problem equivalent to the relaxed commutant lifting problem is introduced and studied. In a somewhat less general form the problem already appears in the analysis of the set of all solutions to the three chain ...
Frazho, A. E. +2 more
core +1 more source
Similarity of C1: Operators and the Hyperinvariant Subspace Problem
Journal of Mathematics, Volume 2024, Issue 1, 2024.In the present paper, we first show that the existence of the solutions of the operator equation S∗XT = X is related to the similarity of operators of class C1., and then we give a sufficient condition for the existence of nontrivial hyperinvariant subspaces. These subspaces are the closure of ranφ(T) for some singular inner functions φ.
Abdelkader Segres +3 more
wiley +1 more source
Highly Entangled Stationary States from Strong Symmetries
Physical Review XWe find that the presence of strong non-Abelian symmetries can lead to highly entangled stationary states even for unital quantum channels. We derive exact expressions for the bipartite logarithmic negativity, Rényi negativities, and operator space ...
Yahui Li +3 more
doaj +1 more source
Commutant properties of w-core inverses
Kuwait Journal of ScienceIn this paper, we investigate commutant properties of the w-core inverse in a ∗-semigroup. Among these, it is shown that [Figure presented] if and only if a is equal projection (EP) with [Figure presented], where a and w are elements of a ∗-semigroup. As
doaj +1 more source
Karpatsʹkì Matematičnì Publìkacìï, 2009 The representation of convolution Gevrey algebra ofultradistributions as commutant of the n-parametric stronglycontinuous semigroup of shifts in algebra of linear and continuousmappings over the space of ultradifferentiable Gevrey functionswith supports ...
A. V. Solomko
doaj
On Some Applications of a Special Integrodifferential Operators
Journal of Function Spaces and Applications, 2012 Let 𝐶(𝑛)(𝔻×𝔻) be a Banach space of complex-valued functions 𝑓(𝑥,𝑦) that are continuous on 𝔻×𝔻, where 𝔻={𝑧∈ℂ∶|𝑧|
Suna Saltan, Yasemin Özel
doaj +1 more source