Results 161 to 170 of about 1,301,436 (336)

Properties of the resolvent of singular q-Dirac operators

open access: yesElectronic Journal of Differential Equations, 2020
In this article, we investigate the resolvent operator of a singular q-Dirac system. We obtain an integral representations for the resolvent of this system, in terms of the spectral function.
Bilender P. Allahverdiev, Huseyin Tuna
doaj  

Nonlinear Dirac Operator and Quaternionic Analysis [PDF]

open access: yesCommunications in Mathematical Physics, 2008
Cosmetic changes ...
openaire   +3 more sources

A new matrix formulation of the Maxwell and Dirac equations

open access: yesHeliyon, 2018
Presented in this paper is a new matrix formulation of both the classical electromagnetic Maxwell equations and the relativistic quantum mechanical Dirac equation.
Richard P. Bocker, B. Roy Frieden
doaj   +1 more source

Scalable, Microwave‐Enabled Synthesis of Ternary WxTi1‐xO2 and Heterostructured TiO2‐WO3‐x Colloidal Nanocrystals: Carrier Dynamics and Photocatalytic Properties

open access: yesAdvanced Science, EarlyView.
Two microwave‐assisted synthetic methods, specifically a one‐pot and a seeded‐growth approach, are developed within a hydroalcoholic solution for the growth of single‐phase ternary WxTi1‐xO2 and heterostructured TiO2‐WO3‐x colloidal nanocrystals. Both types of nanocrystals show significant photocatalytic activity for 4‐methoxybenzyl alcohol oxidation ...
Riccardo Scarfiello   +13 more
wiley   +1 more source

An approach to derivatives for non-monogenic functions

open access: yesRevista Integración
In this paper we introduce the derivatives for non-monogenic functions. We establish the derivative for non-monogenic functions on the Dirac operator.
Julio Cesar Jaramillo Quiceno
doaj   +1 more source

On the discrete spectrum of the Dirac operator on bent chain quantum graph

open access: yesITM Web of Conferences, 2017
We study Dirac operators on an infinite quantum graph of a bent chain form which consists of identical rings connected at the touching points by δ-couplings with a parameter α ∈ ℝ.
Belov Michail, Popov Igor, Blinova Irina
doaj   +1 more source

Unraveling Energy Flow Mechanisms in Semiconductors by Ultrafast Spectroscopy: Germanium as a Case Study

open access: yesAdvanced Science, EarlyView.
A multi‐technique pump‐probe setup capable of performing both transient reflectivity and time‐resolved Raman spectroscopy after ultrafast excitation, provides a comprehensive understanding of ultrafast electronic and phononic processes. Distinct decay rates for the temperature, frequency, and linewidth of the phonon mode in germanium are observed ...
Grazia Raciti   +10 more
wiley   +1 more source

Submanifold Dirac Operator with Torsion

open access: yes, 2003
The submanifold Dirac operator has been studied for this decade, which is closely related to Frenet-Serret and generalized Weierstrass relations. In this article, we will give a submanifold Dirac operator defined over a surface immersed in $\EE^4$ with U(1)-gauge field as torsion in the sense of the Frenet-Serret relation, which also has data of ...
openaire   +3 more sources

Gallium Nitride Semiconductor Resonant Tunneling Transistor

open access: yesAdvanced Science, EarlyView.
Three‐terminal GaN semiconductor resonant tunneling transistors (RTTs), which comprise an double‐barrier AlN/GaN/AlN resonant tunneling diode integrated with a GaN high‐electron‐mobility transistor (HEMT) through epitaxial growth in series and parallel configuraions, respectively.
Fang Liu   +15 more
wiley   +1 more source

A Quest for the Mechanism of Ultrahigh Resolution SEM Imaging

open access: yesAdvanced Science, EarlyView.
Using Monte Carlo simulations with explicit definitions of SE1 and SE2 align with a cascade secondary electron production model, this work shows that the 3D nanostructure modulated SE2 emission enhances other than to reduce topographical contrast via a “miniature Faraday cup” effect.
Hao Tian Chen   +3 more
wiley   +1 more source

Home - About - Disclaimer - Privacy