Results 71 to 80 of about 9,218,372 (188)

Determination of the one‐electron reduced Wigner function for a molecular crystal

Acta Crystallographica Section A, EarlyView.
The first reconstruction of an experimental one‐particle reduced Wigner function for electrons in molecular crystals is reported. It relies on an ensemble N‐representable model jointly refined from the X‐ray diffraction and Compton scattering data.The Wigner function provides a complete phase‐space representation of a quantum state.
Sizhuo Yu, Jean-Michel Gillet
wiley   +1 more source

DIGITAL INFORMATION PROCESSING: THE LIE GROUPS DEFINING THE FILTER BANKS OF THE COMPACT DISC

TASK Quarterly, 2002
The versality of the compact disc (CD) has quickly become apparent to manufacturers and users alike. Exceeding the expectations of even its most ardent supporters, the CD holographic disc storage system has become one of the most successful consumer ...
ERNST BINZ, WALTER SCHEMPP
doaj  

The Ricci-Bourguignon flow on Heisenberg and quaternion Lie groups

, 2018
In this paper, we study the Ricci-Bourguignon flow on higher dimensional classical Heisenberg nilpotent Lie groups and construct a solution of this flow on Heisenberg and quaternion nilpotent Lie groups. In the end, we investigate the deformation of spectrum and length spectrum on compact nilmanifolds obtained of Heisenberg and quaternion nilpotent Lie
openaire   +3 more sources

Convergence of Energy Intensity Across ASEAN‐5 Countries: A Wavelet‐Based Perspective

Natural Resources Forum, EarlyView.
ABSTRACT The convergence hypothesis, which emphasizes the attainment of income equality among nations, has recently gained prominence in energy studies due to its pivotal role in addressing the pressing challenges at the intersection of economic development and energy sustainability.
Havanur Ergün Tatar, Gökhan Konat, Ahmet Koncak, Mehmet Aydin   +3 more
wiley   +1 more source

Comparing three possible hypoelliptic Laplacians on the 5-dimensional Cartan group via div-curl type estimates

Advanced Nonlinear Studies
On general Carnot groups, the definition of a possible hypoelliptic Hodge-Laplacian on forms using the Rumin complex has been considered in (M. Rumin, “Differential geometry on C-C spaces and application to the Novikov-Shubin numbers of nilpotent Lie ...
Baldi Annalisa, Tripaldi Francesca
doaj   +1 more source

G-tables and the Poisson structure of the even cohomology of cotangent bundle of the Heisenberg Lie group

Journal of Algebra
In the first part of the paper, we define the concept of a $G$-table of a $G$-(co)algebra and we compute the $G$-table of some $G$-(co)algebras (here a $G$-algebra is an algebra on which $G$ acts, semisimply, by algebra automorphisms). The $G$-table of a $G$-(co)algebra $A$ is a set of scalars that provides very precise and concise information about ...
Leandro Cagliero, Gonzalo Gutierrez
openaire   +3 more sources

THE FATHERS, COMPUTERS AND US

Modern Theology, EarlyView.
Abstract This essay, designed as a complement to opinions expressed by Rowan Williams and some speakers at the conference in his honour, explores features of early Christianity which suggest a positive evaluation of artificial intelligence. Noting that the fear of reducing humans to machines has been joined in the modern age by the fear that machines ...
Mark J. Edwards
wiley   +1 more source

Lie Group Symmetries as Integral Transforms of Fundamental Solutions [PDF]

We obtain fundamental solutions for PDEs of the form ut = x uxx +f(x)ux ??xru by showing that if the symmetry group of the PDE is nontrivial, it contains a standard integral transform of the fundamental solution. We show that in this case, the problem of
Mark Craddock, Kelly A Lennox
core  

What does it mean to be a post‐Newtonian? Schelling on competing scientific models

The Southern Journal of Philosophy, EarlyView.
Abstract While Schelling's position has often been portrayed as highly critical of Newton, his discussion of Newton's theories has never been thoroughly studied. The goal of this paper is to analyze in more detail the relationship between Schelling and Newton, with an eye toward the fundamental question that guides Schelling: how can conflicts between ...
Raphaël Authier
wiley   +1 more source

Digital–Analog Quantum Simulation and Computing: A Perspective on Past and Future Developments

Advanced Computing, Volume 1, Issue 1, December 2026.
In the past decade, the paradigm of digital–analog quantum technologies has emerged, which proposes to combine the best of both paradigms: large analog blocks, provided by native interactions of the employed quantum platform, enabling scalability, combined with digital gates, allowing for more versatility and, ultimately, universality.
Lucas Lamata
wiley   +1 more source