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Quantum optical phase, rigged Hilbert spaces and complementarity. [PDF]
Philos Trans A Math Phys Eng SciBordon K, Vaccaro JA.
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Unified Unitary Representation of the Poincaré Group for Particles of Zero and Positive Rest Mass
, 1966As is well known, Wigner's construction of the unitary representations in terms of little groups gives quite dissimilar forms for the cases m = 0 and m > 0, while the spinor representation which does give a unified description of the above two cases is ...
A. Chakrabarti
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A unitary representation of SL(2,R)
, 1990A given unitary representation of the group SL(2,R), belonging to the discrete series, is shown to involve necessarily some special functions (in particular, Laguerre and Hardy–Pollaczek polynomials).
H. Bacry
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, 1977
For a particle described by an irreducible unitary representation of the Poincare group, for either positive mass or zero mass and discrete helicity, it is shown that the velocity operator can be identified by its transformations under the Poincare group
T. F. Jordan
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For a particle described by an irreducible unitary representation of the Poincare group, for either positive mass or zero mass and discrete helicity, it is shown that the velocity operator can be identified by its transformations under the Poincare group
T. F. Jordan
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On the Mixed-Unitary Rank of Quantum Channels
Communications in Mathematical Physics, 2020In the theory of quantum information, the mixed-unitary quantum channels, for any positive integer dimension n, are those linear maps that can be expressed as a convex combination of conjugations by n×n\documentclass[12pt]{minimal} \usepackage{amsmath ...
Mark W. Girard +6 more
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Unitary Representation Theory of Exponential Lie Groups
, 1994The aim of the Expositions is to present new and important developments in pure and applied mathematics. Well established in the community over more than two decades, the series offers a large library of mathematical works, including several important ...
H. Leptin, J. Ludwig
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Noncommutative Distributions: Unitary Representation of Gauge Groups and Algebras
, 1993Basic functional groups and Lie algebras multiplicative G-distributions on a Riemannian manifold the energy representations of gauge groups energy representation of path groups the algebraic level - representations of current algebras.
S. Albeverio +4 more
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American Political Science Review, 2017
The article compares analytically populism and technocracy as alternative forms of political representation to party government. It argues that populist and technocratic principles of representation challenge fundamental features of party democracy.
Daniele Caramani
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The article compares analytically populism and technocracy as alternative forms of political representation to party government. It argues that populist and technocratic principles of representation challenge fundamental features of party democracy.
Daniele Caramani
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IEEE Transactions on Signal Processing, 2010
This paper deals with the Bayesian signal denoising problem, assuming a prior based on a sparse representation modeling over a unitary dictionary. It is well known that the maximum a posteriori probability (MAP) estimator in such a case has a closed-form
M. Protter, I. Yavneh, Michael Elad
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This paper deals with the Bayesian signal denoising problem, assuming a prior based on a sparse representation modeling over a unitary dictionary. It is well known that the maximum a posteriori probability (MAP) estimator in such a case has a closed-form
M. Protter, I. Yavneh, Michael Elad
semanticscholar +1 more source