Results 31 to 40 of about 830,132 (317)
Physical Review Research, 2022 Positive operator valued measurements (POVMs) play an important role in efficient quantum communication and computation. While optical systems are one of the strongest candidates for long distance quantum communication and information processing ...
Jaskaran Singh, Arvind, Sandeep K. Goyal
doaj +1 more source
Certain integral inequalities involving tensor products, positive linear maps, and operator means
Journal of Inequalities and Applications, 2016 We present a number of integral inequalities involving tensor products of continuous fields of bounded linear operators, positive linear maps, and operator means.
Pattrawut Chansangiam
doaj +1 more source
Calculation of the Hidden Symmetry Operator in PT-Symmetric Quantum Mechanics [PDF]
, 2002 In a recent paper it was shown that if a Hamiltonian H has an unbroken PT symmetry, then it also possesses a hidden symmetry represented by the linear operator C. The operator C commutes with both H and PT.
Bender C M +12 more
core +2 more sources
Further Improved Weighted Arithmetic-Geometric Operator Mean Inequalities
Mathematics, 2019 The main purpose of this paper is to present some weighted arithmetic-geometric operator mean inequalities. These inequalities are refinements and generalizations of the corresponding results.
Jianming Xue, Xingkai Hu
doaj +1 more source
The Approximation of a Modified Baskakov Operator
Journal of Mathematics, 2023 Because of their simple form and high quality, linear arithmetical operators, particularly linear positive operators, are very popular. The number of in-depth studies on linear operator approximation is extensive, and the majority of the published ...
Ma Yingdian, Wang Weimeng
doaj +1 more source
Eventually positive semigroups of linear operators
Journal of Mathematical Analysis and Applications, 2016 We develop a systematic theory of eventually positive semigroups of linear operators mainly on spaces of continuous functions. By eventually positive we mean that for every positive initial condition the solution to the corresponding Cauchy problem is positive for large enough time.
Daniel Daners +2 more
openaire +3 more sources
Weighted arithmetic–geometric operator mean inequalities
Journal of Inequalities and Applications, 2018 In this paper, we refine and generalize some weighted arithmetic–geometric operator mean inequalities due to Lin (Stud. Math. 215:187–194, 2013) and Zhang (Banach J. Math. Anal. 9:166–172, 2015) as follows: Let A and B be positive operators.
Jianming Xue
doaj +1 more source
Moment problems for operator polynomials
, 2012 We extend Haviland's theorem on the integral representation of positive linear functionals on usual (real multivariate) polynomials to the integral representation of positive linear maps on operator polynomials mapping into the space of operators.
Aljaž Zalar +29 more
core +1 more source
On an approximating linear positive operator of Cheney-Sharma
Journal of Numerical Analysis and Approximation Theory, 1997 Not available.
D. D. Stancu, C. Cismașiu
doaj +2 more sources
Extreme Positive Linear Operators.
MATHEMATICA SCANDINAVICA, 1969 Made available in DSpace on 2014-12-09T22:17:41Z (GMT). No. of bitstreams: 1 6808044.pdf: 4439781 bytes, checksum: 3672332eda28f28f87bd9d5ae1b3d9c4 (MD5) Previous issue date: 1967 ; Embargo set by: Seth Robbins for item 61762 Lift date: Forever Reason: Restricted to the U of I community idenfinitely during batch ingest of legacy ETDs ; Restricted to ...
openaire +2 more sources