Results 61 to 70 of about 849,577 (302)

Symmetries and time operators [PDF]

Journal of Physics A: Mathematical and Theoretical, 2010
All covariant time operators with normalized probability distribution are derived. Symmetry criteria are invoked to arrive at a unique expression for a given Hamiltonian. As an application, a well known result for the arrival time distribution of a free particle is generalized and extended.
Hegerfeldt, Gerhard C., Muga, J. G.
openaire   +4 more sources

Low‐Temperature Imidization of Polyimides (PI) for Scalable Manufacturing of Flexible Wearable Electronics

Advanced Engineering Materials, EarlyView.
Low‐temperature imidization of PEG‐modified polyimide enables fully screen‐printed, roll‐to‐roll fabrication of flexible electrodes on PET substrates, delivering robust mechanical durability and reliable ECG/EMG signal performance for wearable electronics.
Akib Abdullah Khan, Jong‐Hoon Kim
wiley   +1 more source

Differential symmetry operators first order canonical differential equations

Известия высших учебных заведений. Поволжский регион: Физико-математические науки
Background. Symmetries play an important role in mechanics and theoretical physics. The main models in these sciences are differential equations and systems of equations.
A.I. Fomin, V.I. Titarenko
doaj   +1 more source

On instanton effects in the operator product expansion

Journal of High Energy Physics, 2017
We revisit the computation of instanton effects to various correlation functions in N = 4 $$ \mathcal{N}=4 $$ SYM and clarify a controversy existing in the literature regarding their consistency with the OPE and conformal symmetry.
Luis F. Alday, Gregory P. Korchemsky
doaj   +1 more source

Study on Birkhoff orthogonality and symmetry of matrix operators

Open Mathematics, 2023
We focus on the problem of generalized orthogonality of matrix operators in operator spaces. Especially, on ℬ(l1n,lpn)(1≤p≤∞){\mathcal{ {\mathcal B} }}\left({l}_{1}^{n},{l}_{p}^{n})\left(1\le p\le \infty ), we characterize Birkhoff orthogonal elements of
Wei Yueyue, Ji Donghai, Tang Li
doaj   +1 more source

BMN operators and superconformal symmetry [PDF]

Nuclear Physics B, 2003
38 pages, v2: minor changes, to appear in Nucl.
openaire   +3 more sources

Is an Apple an Orange? A Large Language Model Benchmark for Candidate Term Extraction and Subclass Decisions Against Upper Ontologies in Engineering and Materials Science

Advanced Engineering Materials, EarlyView.
Building machine‐readable vocabularies for materials science is slow, expert‐driven work. This study benchmarks 13 large language models on two of its first steps: finding candidate terms in engineering articles and deciding where they belong in a class hierarchy.
Thomas Bjarsch, Maximilian Holland, Klaus Drechsler, Johannes Schilp   +3 more
wiley   +1 more source

Symmetries and Bäcklund Transformations for the Modified Veronese Web Equation

AppliedMath
This paper investigates recursion operators and nonlocal symmetry structures for the modified Veronese web equation. The novelty of the work lies in the explicit construction of a direct recursion operator and its inverse in the tangent-covering ...
Qingli Luo, Zhe Wang, Yufeng Zhang
doaj   +1 more source

Conformal symmetry of QCD in d-dimensions

Physics Letters B, 2019
QCD in d=4−2ϵ space-time dimensions possesses a nontrivial critical point and there are good reasons to expect that this theory restricted to the gauge-invariant subsector is conformally invariant.
V.M. Braun, A.N. Manashov, S.-O. Moch, M. Strohmaier   +3 more
doaj   +1 more source

Thirty-first Illinois Custom Spray Operators Training School: summaries of presentations [PDF]

, 1979
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Illinois Custom Spray Operators' School
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