Search results for "Berg"

Theoretical Determination of the Singlet → Singlet and Singlet → Triplet Electronic Spectra, Lowest Ionization Potentials, and Electron Affinity of C…

2003

The singlet → singlet and singlet → triplet electronic spectra of cycloocta-1,3,5,7-tetraene are studied using multiconfigurational second-order perturbation theory (CASPT2) and extended atomic natural orbitals (ANOs) basis sets. The observed dipole-allowed features at 4.43, 6.02, and 6.42 eV and the spin-forbidden singlet → triplet bands with maxima at 3.05, 4.05, and 4.84 eV (Frueholz, R. P.; Kuppermann, A. J. Chem. Phys. 1978, 69, 3614) are assigned as the transitions 1 1 A 1 → 1 1 A 2 , 1 1 A 1 → 2 1 B 2 (3p z ), 1 1 A 1 → 3 1 E, and 1 1 A 1 - 1 3 A 2 , 1 1 A 1 → 1 3 E, 1 1 A 1 → 1 3 B 1 , respectively. The lowest (3s) Rydberg singlet and triplet states are placed at 5.58 (2 1 A 1 ) and…

Moritz Hauptmann in München. Hochschuldidaktik im 19. Jahrhundert

2014

Dass Moritz Hauptmanns Buch Die Natur der Harmonik und der Metrik zur Basis institutionalisierter musiktheoretischer Unterweisung wurde, wie an der Koniglich bayerischen Musikschule in Munchen nachweisbar, mag angesichts des hohen Abstraktionsgrads dieser Schrift verwundern. Besonders der Unterricht in der ersten Dekade an der Musikschule kann als einzigartiges Exempel der systematischen Anwendung Hauptmanns in der Lehre verstanden werden. Der Beitrag erortert die Bedeutung der Schrift Hauptmanns fur die Lehre der wichtigsten Fachvertreter nach Grundung der Musikschule (Peter Cornelius und Josef Gabriel Rheinberger), sowie – als Verfallsgeschichte – in der Zeit nach Cornelius’ fruhem Tod un…

Tykkimies Lars Dahlberg (1746-1818) : tapaustutkimus ruotsalaistaustaisen sotilaan etsimisestä ja Suomeen jäämisen syistä

2019

Heisenberg Uncertainty Relation in Quantum Liouville Equation

2009

We consider the quantum Liouville equation and give a characterization of the solutions which satisfy the Heisenberg uncertainty relation. We analyze three cases. Initially we consider a particular solution of the quantum Liouville equation: the Wigner transformf(x,v,t) of a generic solutionψ(x;t) of the Schrödinger equation. We give a representation ofψ(x,t) by the Hermite functions. We show that the values of the variances ofxandvcalculated by using the Wigner functionf(x,v,t) coincide, respectively, with the variances of position operatorX^and conjugate momentum operatorP^obtained using the wave functionψ(x,t). Then we consider the Fourier transform of the density matrixρ(z,y,t) =ψ∗(z,t)…

Fast, low-level detection of strontium-90 and strontium-89 in environmental samples by collinear resonance ionization spectroscopy

1993

Environmental assessment in the wake of a nuclear accident requires the rapid determination of the radiotoxic isotopes 89Sr and 90Sr. Useful measurements must be able to detect 108 atoms in the presence of about 1018 atoms of the stable, naturally occurring isotopes. This paper describes a new approach to this problem using resonance ionization spectroscopy in collinear geometry, combined with classical mass separation. After collection and chemical separation, the strontium from a sample is surface-ionized and the ions are accelerated to an energy of about 30 keV. Initially, a magnetic mass separator provides an isotopic selectivity of about 106. The ions are then neutralized by charge exc…

Linguistica Lettica, Nr. 30

2022

Žurnāla "Linguistica Lettica" 30. numura tēma ir "Valodas bagātība slēpjas tās dažādībā". The theme of the 30th issue of the annual journal "Linguistica Lettica" is "The richness of language lies in its diversity".

Journal of Baltic Linguistics

2012

Anna FRĪDENBERGA. Motivācijas attieksmes sufiksālajiem atvasinājumiem ar -ība Georga Manceļa darbos ; Genovaitė KAČIUŠKIENĖ, Irena KRUOPIENĖ. Tarminis tapatumas lietuvių studentų akimis ; Igors KOŠKINS. Aizguvumi 19.gs. 2. puses Rīgas krievu valodā un citvalodu reģionālās leksikogrāfijas avotu problēma ; Ērika SAUSVERDE. Words Connected with the Sea and the Possible Substratum in the Baltic Sea Region – a New Approach? ; Anželika SMETONIENĖ. Kai kurių XVI–XVII a. LDK tekstų skolintų veiksmažodžių šaltinių patikslinimas ; Baltu valodu popularizēšana Japānā (Kaiširo Kanno) ; Erster Nachtrag zur Gesamtbibliographie von Prof. Rainer Eckert ; Rainer Eckert. Andrejs Veisbergs „Borrowed Phraseolog…

A Riemann manifold structure of the spectra of weighted algebras of holomorphic functions

2009

[EN] In this paper we give general conditions on a countable family V of weights on an unbounded open set U in a complex Banach space X such that the weighted space HV (U) of holomorphic functions on U has a Frechet algebra structure. For such weights it is shown that the spectrum of HV(U) has a natural analytic manifold structure when X is a symmetrically regular Banach space, and in particular when X = C-n. (C) 2009 Elsevier Ltd. All rights reserved.

A space of projections on the Bergman space

2010

We define a set of projections on the Bergman space A 2 , which is parameterized by an ane subset of a Banach space of holomorphic functions in the disk and which includes the classical Forelli-Rudin projections.

Some criteria for detecting capable Lie algebras

2013

Abstract In virtue of a recent bound obtained in [P. Niroomand, F.G. Russo, A note on the Schur multiplier of a nilpotent Lie algebra, Comm. Algebra 39 (2011) 1293–1297], we classify all capable nilpotent Lie algebras of finite dimension possessing a derived subalgebra of dimension one. Indirectly, we find also a criterion for detecting noncapable Lie algebras. The final part contains a construction, which shows that there exist capable Lie algebras of arbitrary big corank (in the sense of Berkovich–Zhou).