Results 1 to 10 of about 96,759 (195)
Tensor Products in Quantum Functional Analysis: the Non-Matricial Approach [PDF]
, 2006 As is known, there exists an alternative, "non-matricial" way to present basic notions and results of quantum functional analysis (= operator space theory). This approach is based on considering, instead of matrix spaces, a single space, consisting, roughly speaking, of vectors from the initial linear space equipped with coefficients taken from some ...
A. Ya. Helemskii
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Parametric models analysed with linear maps
Advanced Modeling and Simulation in Engineering Sciences, 2020 Parametric entities appear in many contexts, be it in optimisation, control, modelling of random quantities, or uncertainty quantification. These are all fields where reduced order models (ROMs) have a place to alleviate the computational burden ...
Hermann G. Matthies, Roger Ohayon
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Wilson Loops and Area-Preserving Diffeomorphisms in Twisted Noncommutative Gauge Theory [PDF]
, 2007 We use twist deformation techniques to analyse the behaviour under area-preserving diffeomorphisms of quantum averages of Wilson loops in Yang-Mills theory on the noncommutative plane.
J. Wess +6 more
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Non-equilibrium dynamics of a thermal plasma in a gravitational field [PDF]
, 1998 We introduce functional methods to study the non-equilibrium dynamics of a quantum massless scalar field at finite temperature in a gravitational field.
A. Campos +85 more
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Mixed symmetry tensors in the worldline formalism [PDF]
, 2016 We consider the first quantised approach to quantum field theory coupled to a non-Abelian gauge field. Representing the colour degrees of freedom with a single family of auxiliary variables the matter field transforms in a reducible representation of the
Corradini, Olindo, Edwards, James P.
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Nonlocal, noncommutative diagrammatics and the linked cluster Theorems [PDF]
, 2011 Recent developments in quantum chemistry, perturbative quantum field theory, statistical physics or stochastic differential equations require the introduction of new families of Feynman-type diagrams. These new families arise in various ways.
Brouder, Christian, Frédéric, Patras
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On density and dentability in Hilbert spaces
Scientific AfricanThis paper establishes necessary and sufficient conditions for density and dentability in infinite-dimensional complex Hilbert spaces, demonstrating their fundamental connections to operator theory and optimization through a synthesis of spectral ...
Joseph Owuor Owino, Benard Okelo
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, 2021 We study several aspects of the study of Ind-Banach modules over Banach rings thereby synthesizing some aspects of homological algebra and functional analysis.
Ben-Bassat, Oren, Kremnizer, Kobi
core
Improved tensor-product expansions for the two-particle density matrix
, 2001 We present a new density-matrix functional within the recently introduced framework for tensor-product expansions of the two-particle density matrix. It performs well both for the homogeneous electron gas as well as atoms.
A.K.M. Müller +29 more
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, 2001 The noise kernel is the vacuum expectation value of the (operator-valued) stress-energy bi-tensor which describes the fluctuations of a quantum field in curved spacetimes.
A. Campos +57 more
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