Browsing Fakultät für Mathematik und Physik by Issue Date

Browsing Fakultät für Mathematik und Physik by Issue Date

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  • Rieger, G.J. (Berlin : De Gruyter, 1977)
    [No abstract available]
  • Bergmann, L.B.; Demmig, F. (Berlin : De Gruyter, 1977)
    A four step model and two five step models of krypton are developed for application to stepwise ionization relaxation. The four step model is preferred out of practical and economical grounds. The corresponding rate equations ...
  • Pfaffe, S.; Tiemann, E.; Hoeft, J. (Berlin : De Gruyter, 1978)
    The hyperfine structure of the rotational transition J = 2 ← 1 in the vicinity of 9.8 GHz was measured. The analysis yielded the following quadrupole coupling constants: e qv Q (79Br)= 105.78(34) + 0.92(38) (υ +1/2) MHz, ...
  • Rieger, G.J. (Berlin : De Gruyter, 1978)
    Im Zusammenhang mit den Farey-Brüchen für Q hat man die bekannten Ford-Kreise. Das Ziel dieser Arbeit ist es, im Zusammenhang mit dem Körper H der 3.-ten Einheitswurzel analog Ford-Kugeln zu untersuchen. Hauptsächlich geht ...
  • Kelemen, A. (Berlin : De Gruyter, 1979)
    We discuss a method of calculating the mean energy of a quantum system if the latter is subjected to time periodic perturbations. This, e.g., includes the possibility of determining shapes of spectral lines for an arbitrary ...
  • Erné, Marcel (Cambridge : Cambridge University Press, 1980)
    The observation that convergence of real sequences may be defined in terms of limits inferior and limits superior as by means of neighbourhoods in the Euclidean topology leads to the question: for which lattices does order ...
  • Hefter, E.F. (Berlin, Boston : De Gruyter, 1982)
    A slight and natural extension of the traditional Korteweg-de Vries equation (KdV) allows all (or groups) of its solitons to have the same velocity thus facilitating the application of the KdV to realistic quantum mechanical ...
  • Pfnür, Herbert; Menzel, D. (College Park, MD : American Institute of Physics, 1983)
    After careful calibration, the work function change induced by CO adsorption on Ru(001) has been used to measure the sticking coefficient s as functions of sample temperature (between 100 and 400 K) and coverage, with the ...
  • Pfnür, Herbert; Feulner, P.; Menzel, D. (College Park, MD : American Institute of Physics, 1983)
    A variety of methods [temperature programmed desorption via pressure rise and via work function changes (Δφ); isothermal desorption via Δφ: quasiequilibrium measurements via isobars monitored by Δφ, in combination with ...
  • Hefter, E.F.; Gridnev, K.A. (Berlin : De Gruyter, 1983)
    The foundations of the inverse mean field method (Imefim) and its relation to traditional approaches are discussed. Imefim predicts the energy dependence of the real central (nuclear) part of the optical model potential ...
  • Auerbach, C.J.; Pfnür, Herbert; Rettner, C.T.; Lee, J.; Madix, R.J. (College Park, MD : American Institute of Physics, 1984)
    Measurements are reported of the dependence of the dissociative adsorption probability on the incidence angle of nitrogen beam. The supersonic molecular beam of N2 is incident on a W(110) surface mounted in a UHV chamber. ...
  • Hefter, E.F.; Mitropolsky, I.A. (Berlin : De Gruyter, 1984)
    Inverse methods are applied to the nuclear bound-state problem. Considering only the self-interactions of these states analytical solutions results for potentials and densities. The simplest possible approximation to the ...
  • Krauss-Varban, D.; Demmig, F. (Cambridge : Cambridge University Press, 1984)
    The ionization relaxation and radiative cooling of weakly unsteady shock waves in krypton and xenon is examined. We find that, besides radiation energy loss, the shock-tube boundary layers and shock attenuation strongly ...
  • Pfnür, Herbert; Rettner, C.T.; Lee, J.; Madix, R.J.; Auerbach, D.J. (College Park, MD : American Institute of Physics, 1986)
    Molecular beam techniques have been used to study the dissociative chemisorption of nitrogen on W(110). Chemisorption probabilities have been measured as a function of incidence angle θi and kinetic energy Ei surface ...
  • Rettner, C.T.; Pfnür, Herbert; Auerbach, D.J. (College Park, MD : American Institute of Physics, 1986)
    The vibrational energy dependence of the dissociative chemisorption probability of CH4 on W(110) is investigated with the use of a seeded supersonic molecular beam. By variation of the beam source temperature and seed gas ...
  • Erné, Marcel (Cambridge : Cambridge University Press, 1987)
    Several` “classical” results on algebraic complete lattices extend to algebraic posets and, more generally, to so called compactly generated posets; but, of course, there may arise difficulties in the absence of certain ...
  • Frahm, Holger; Mikeska, H.J. (College Park (Maryland) : American Physical Society, 1988)
    [no abstract available]
  • Hasegawa, H.; Mikeska, H.J.; Frahm, Holger (College Park (Maryland) : American Physical Society, 1988)
    It is shown that the joint distribution of energy eigenvalues for systems with a varying degree of nonintegrability which has been obtained dynamically by T. Yukawa [Phys. Rev. Lett. 54, 1883 (1985)] can also be deduced ...
  • Frahm, Holger; Mikeska, H.J. (College Park (Maryland) : American Physical Society, 1988)
    The statistical properties of the quasienergy spectrum are used to measure the influence of quantum effects on the quantum kicked rotator which displays chaotic behavior in the classical limit. A transition from ...
  • Fowler, Michael; Frahm, Holger (College Park (Maryland) : American Physical Society, 1989)
    Gutzwiller has developed a scheme for determining the energy levels of a finite quantum Toda lattice. We present a numerical analysis using his method and calculate low-lying energy levels for some small lattices. We check ...

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