Library

X
feed icon rss

Your email was sent successfully. Check your inbox.

An error occurred while sending the email. Please try again.

Proceed reservation?

Export
Filter
  • Electronic Resource  (6)
  • 2000-2004  (6)
  • 2002  (6)
  • PACS. 43.75.+a Music and musical instruments – 01.30.-y Physics literature and publications – 87.23.-n Ecology and evolution  (2)
  • PACS. 89.75.Hc Networks and genealogical trees – 05.50.+q Lattice theory and statistics (Ising, Potts, etc.) – 87.23.Ge Dynamics of social systems  (2)
  • PACS. 02.50.-r Probability theory, stochastic processes, and statistics – 05.20.-y Classical statistical mechanics – 05.30.-d Quantum statistical mechanics – 05.70.-a Thermodynamics  (1)
  • PACS. 02.50.Ey Stochastic processes – 05.10.Gg Stochastic analysis methods (Fokker-Planck, Langevin, etc.) – 89.75.-k Complex systems  (1)
Source
Material
  • Electronic Resource  (6)
Years
  • 2000-2004  (6)
Year
  • 2002  (6)
Keywords
  • 1
    Electronic Resource
    Electronic Resource
    The September 11 attack: A percolation of individual passive support (2002)
    Springer
    The European physical journal 26 (2002), S. 269-272 
    Details
    ISSN: 1434-6036
    Keywords: PACS. 89.75.Hc Networks and genealogical trees – 05.50.+q Lattice theory and statistics (Ising, Potts, etc.) – 87.23.Ge Dynamics of social systems
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract: A model to terrorism is presented using the theory of percolation. Terrorism power is related to the spontaneous formation of random backbones of people who are sympathetic to terrorism but without being directly involved in it. They just don't oppose in case they could. In the past such friendly-to-terrorism backbones have been always existing but were of finite size and localized to a given geographical area. The September 11 terrorist attack on the US has revealed for the first time the existence of a world wide spread extension. It is argued to have result from a sudden world percolation of otherwise unconnected and dormant world spread backbones of passive supporters. The associated strategic question is then to determine if collecting ground information could have predict and thus avoid such a transition. Our results show the answer is no, voiding the major criticism against intelligence services. To conclude the impact of military action is discussed.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1140/epjb/e20020089
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 2
    Electronic Resource
    Electronic Resource
    Minority opinion spreading in random geometry (2002)
    Springer
    The European physical journal 25 (2002), S. 403-406 
    Details
    ISSN: 1434-6036
    Keywords: PACS. 89.75.Hc Networks and genealogical trees – 05.50.+q Lattice theory and statistics (Ising, Potts, etc.) – 87.23.Ge Dynamics of social systems
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract: The dynamics of spreading of the minority opinion in public debates (a reform proposal, a behavior change, a military retaliation) is studied using a diffusion reaction model. People move by discrete step on a landscape of random geometry shaped by social life (offices, houses, bars, and restaurants). A perfect world is considered with no advantage to the minority. A one person-one argument principle is applied to determine locally individual mind changes. In case of equality, a collective doubt is evoked which in turn favors the Status Quo. Starting from a large in favor of the proposal initial majority, repeated random size local discussions are found to drive the majority reversal along the minority hostile view. Total opinion refusal is completed within few days. Recent national collective issues are revisited. The model may apply to rumor and fear propagation.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1140/epjb/e20020045
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 3
    Electronic Resource
    Electronic Resource
    The individual success of musicians, like that of physicists, follows a stretched exponential distribution by J.A. Davies (2002)
    Springer
    The European physical journal 30 (2002), S. 593-595 
    Details
    ISSN: 1434-6036
    Keywords: PACS. 43.75.+a Music and musical instruments – 01.30.-y Physics literature and publications – 87.23.-n Ecology and evolution
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract: Comment on Eur. Phys. J. B 27, 445 (2002) We analyze the distribution of success of musicians, comparing a stretched exponential (found by J.A. Davies [Eur. Phys. J. B 27, 445 (2002)]) with a distribution of the family of the q-exponential (presenting an intermediate power-law regime with a crossover to an exponential tail). We find that both assumptions yield comparable results, within the available range of data, hence a definite conclusion cannot yet be taken. But this example joins many others that has been found to be fairly described by q-exponentials (or variations of it), which may be indicative that there is a (significantly large) class of systems described by nonextensive statistical mechanics, from where q-exponentials naturally appear.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1140/epjb/e2002-00419-y
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 4
    Electronic Resource
    Electronic Resource
    Nonextensive statistics and incomplete information (2002)
    Springer
    The European physical journal 26 (2002), S. 357-368 
    Details
    ISSN: 1434-6036
    Keywords: PACS. 02.50.-r Probability theory, stochastic processes, and statistics – 05.20.-y Classical statistical mechanics – 05.30.-d Quantum statistical mechanics – 05.70.-a Thermodynamics
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract: We comment on some open questions and theoretical peculiarities in Tsallis nonextensive statistical mechanics. It is shown that the theoretical basis of the successful Tsallis' generalized exponential distribution shows some worrying properties with the conventional normalization and the escort probability. These theoretical difficulties may be avoided by introducing an so called incomplete normalization allowing to deduce Tsallis' generalized distribution in a more convincing and consistent way.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1140/epjb/e20020100
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 5
    Electronic Resource
    Electronic Resource
    Efficient option pricing with path integral (2002)
    Springer
    The European physical journal 27 (2002), S. 249-255 
    Details
    ISSN: 1434-6036
    Keywords: PACS. 02.50.Ey Stochastic processes – 05.10.Gg Stochastic analysis methods (Fokker-Planck, Langevin, etc.) – 89.75.-k Complex systems
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract: An efficient computational algorithm to price financial derivatives is presented. It is based on a path integral formulation of the pricing problem. It is shown how the path integral approach can be worked out in order to obtain fast and accurate predictions for the value of a large class of options, including those with path-dependent and early exercise features. As examples, the application of the method to European and American options in the Black-Scholes model is illustrated. The results of the algorithm are compared with those obtained with the standard procedures known in the literature and found to be in good agreement.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1140/epjb/e20020147
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 6
    Electronic Resource
    Electronic Resource
    The individual success of musicians, like that of physicists, follows a stretched exponential distribution (2002)
    Springer
    The European physical journal 27 (2002), S. 445-447 
    Details
    ISSN: 1434-6036
    Keywords: PACS. 43.75.+a Music and musical instruments – 01.30.-y Physics literature and publications – 87.23.-n Ecology and evolution
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract: Over the last five years or so, a number of studies have focussed on the distribution of `success' in physics and other sciences; in these studies, `success' is measured by the number of times a paper, or an author, is cited. The distribution of citations of individual papers approximates to a power-law [S. Redner, Eur. Phys. J. B 4, 131 (1998)], while lifetime total citations of the 1120 most-cited physicists follows a stretched exponential [J. Laherrère, D. Sornette, Eur. Phys. J. B 2, 525 (1998)]. Here, I examine the distribution of success in popular music, a field of creativity that has social structures very different from those of physics, and which is generally held to be controlled primarily by fashion. For this study, the lifetime total success of bands was measured by the total number of weeks they were in the weekly `top 75' list of best-selling recordings. Like the lifetime success of physicists reported by Laherrere and Sornette, the success of the 6107 bands that appeared in the UK `top 75' from 1950 until 2000 follows a stretched exponential of the form P(x)dx = c(x c - 1/x 0 c)exp[- (x/x 0)c]dx; for the music data, c = 0.5 and x 0 = 9.37.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1140/epjb/e2002-00176-y
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
Close ⊗
This website uses cookies and the analysis tool Matomo. More information can be found here...