Results 71 to 80 of about 11,887 (225)
Annals of Pure and Applied Logic, 2007 27 pages, minor ...
Došen, Kosta, Petrić, Zoran
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Dilation theory, commutant lifting and semicrossed products [PDF]
Documenta Mathematica, 2011 We take a new look at dilation theory for nonself-adjoint operator algebras. Among the extremal (co)extensions of a repre- sentation, there is a special property of being fully extremal. This allows a refinement of some of the classical notions which are
K. Davidson, E. Katsoulis
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Unraveling-paired dynamical maps recover the input of quantum channels
New Journal of Physics, 2023 We explore algebraic and dynamical consequences of unraveling general time-local master equations. We show that the ‘influence martingale’, the paramount ingredient of a recently discovered unraveling framework, pairs any time-local master equation with ...
Brecht Donvil +1 more
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On the equivalence of differential operators of infinite order with constant coefficients [PDF]
Mathematica Bohemica, 2017 We investigate the conditions of equivalence of a differential operator of infinite order with constant coefficients to the operator of differentiation in one space of analytic functions.
Yuriy Linchuk
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Locally Homogeneous Manifolds Defined by Lie Algebra of Infinitesimal Affine Transformations
Mathematics, 2022 This article deals with Lie algebra G of all infinitesimal affine transformations of the manifold M with an affine connection, its stationary subalgebra ℌ⊂G, the Lie group G corresponding to the algebra G, and its subgroup H⊂G corresponding to the ...
Vladimir A. Popov
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Proceedings of the American Mathematical Society, 1992 This paper deals with minimizing | | B − ( A X − X A ) | | p ||B - (AX - XA)|{|_p} , where A A and B B
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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
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Partition Functions for Heterotic WZW Conformal Field Theories [PDF]
, 1992 Thus far in the search for, and classification of, `physical' modular invariant partition functions $\sum N_{LR}\,\c_L\,\C_R$ the attention has been focused on the {\it symmetric} case where the holomorphic and anti-holomorphic sectors, and hence the ...
Gannon, Terry
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Boundary representations of locally compact hyperbolic groups
Proceedings of the London Mathematical Society, Volume 131, Issue 6, December 2025.Abstract We develop the theory of Patterson–Sullivan measures for locally compact hyperbolic groups. This theory associates to certain left‐invariant metrics on the group measures on its boundary. Next, we establish irreducibility of the resulting (unitary) Koopman representations for second countable, nonelementary, unimodular locally compact ...
Michael Glasner
wiley +1 more source
Local spectral theory for subordinated operators: The Cesàro operator and beyond
Journal of the London Mathematical Society, Volume 112, Issue 2, August 2025.Abstract We study local spectral properties for subordinated operators arising from C0$C_0$‐semigroups. Specifically, if T=(Tt)t⩾0$\mathcal {T}=(T_t)_{t\geqslant 0}$ is a C0$C_0$‐semigroup acting boundedly on a complex Banach space and Hν=∫0∞Ttdν(t)$$\begin{equation*} \mathcal {H}_\nu = \int _{0}^{\infty } T_t\; d\nu (t) \end{equation*}$$is the ...
Eva A. Gallardo‐Gutiérrez +1 more
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