Results 41 to 50 of about 50,290 (183)
Mathematical Methods in the Applied Sciences, EarlyView.ABSTRACT This paper develops a mathematical framework for interpreting observations of solar inertial waves in an idealized setting. Under the assumption of purely toroidal linear waves on the sphere, the stream function of the flow satisfies a fourth‐order scalar equation.
Tram Thi Ngoc Nguyen +3 more
wiley +1 more source
Entropy of Quantum Measurement
Entropy, 2015 A notion of entropy of a normal state on a finite von Neumann algebra in Segal’s sense is considered, and its superadditivity is proven together with a necessary and sufficient condition for its additivity.
Hanna Podsȩdkowska
doaj +1 more source
steel research international, EarlyView.Hydrogen‐based direct reduced iron (H‐DRI) melts differently from scrap and carbon‐bearing DRI. This work combines differential scanning calorimetry experiments, FactSage thermodynamics, and simple composition‐based regression to predict solidus, liquidus, heat capacity, and enthalpy for H‐DRI.
Ankur Agnihotri +3 more
wiley +1 more source
Symmetry, symmetry topological field theory and von Neumann algebra
Journal of High Energy PhysicsWe study the additivity and Haag duality of the von Neumann algebra of a quantum field theory $${\mathcal{T}}_{\mathcal{F}}$$ with 0-form (and the dual (d − 2)-form) (non)-invertible global symmetry $$\mathcal{F}$$ .
Qiang Jia, Jiahua Tian
doaj +1 more source
Some inequalities and majorization for products of τ-measurable operators
Journal of Inequalities and Applications, 2022 In this paper, for a semi-finite von Neumann algebra M $\mathcal{M}$ , we study the Young, Hölder and Heinz means inequalities and extend results for τ-measurable operators. We obtain some refinements of the those inequalities for τ-measurable operators.
Zahra Maleki Khouzani +1 more
doaj +1 more source
Computing Skinning Weights via Convex Duality
Computer Graphics Forum, EarlyView.We present an alternate optimization method to compute bounded biharmonic skinning weights. Our method relies on a dual formulation, which can be optimized with a nonnegative linear least squares setup. Abstract We study the problem of optimising for skinning weights through the lens of convex duality.
J. Solomon, O. Stein
wiley +1 more source
UNITARILY INVARIANT NORMS ON FINITE VON NEUMANN ALGEBRAS [PDF]
, 2018 John von Neumann’s 1937 characterization of unitarily invariant norms on the n × n matrices in terms of symmetric gauge norms on Cn had a huge impact on linear algebra. In 2008 his results were extended to Ifactor von Neumann algebras by J.
Fan, Haihui
core +1 more source
Relative double commutants in coronas of separable C*-algebras
, 2018 We prove a double commutant theorem for separable subalgebras of a wide class of corona C*-algebras, largely resolving a problem posed by Pedersen. Double commutant theorems originated with von Neumann, whose seminal result evolved into an entire field ...
Kucerovsky, Dan, Mathieu, Martin
core +1 more source
RIGIDITY FOR VON NEUMANN ALGEBRAS [PDF]
Proceedings of the International Congress of Mathematicians (ICM 2018), 2019 We survey some of the progress made recently in the classification of von Neumann algebras arising from countable groups and their measure preserving actions on probability spaces. We emphasize results which provide classes of (W$^*$-superrigid) actions that can be completely recovered from their von Neumann algebras and II$_1$ factors that have a ...
openaire +2 more sources
A spectral analysis extension to DEMATEL for strategic leverage points identification
International Transactions in Operational Research, EarlyView.Abstract Efforts to intervene in complex systems often emphasize influential factors, yet system behavior is equally shaped by the relationships among them. Methods such as Decision‐Making Trial and Evaluation Laboratory (DEMATEL) map causal structures but remain descriptive and do not identify which relationships provide the greatest leverage for ...
Pavlos Delias, Kerasia Kalkitsa
wiley +1 more source