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  • Antithamnion pectinatum  (2)
  • PACS. 75.10.Nr Spin-glass and other random models – 02.60.Pn Numerical optimization  (2)
  • PACS. 75.10.-b General theory and models of magnetic ordering - 75.50.-y Studies of specific magnetic materials  (1)
  • 1
    Electronic Resource
    Electronic Resource
    Neighborhood preferences in random matching problems (2001)
    Springer
    The European physical journal 22 (2001), S. 229-237 
    Details
    ISSN: 1434-6036
    Keywords: PACS. 75.10.Nr Spin-glass and other random models – 02.60.Pn Numerical optimization
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract: We consider a class of random matching problems where the distance between two points has a probability law which, for a small distance l, goes like lr. In the framework of the cavity method, in the limit of an infinite number of points, we derive equations for pk, the probability for some given point to be matched to its kth nearest neighbor in the optimal configuration. These equations are solved in two limiting cases: r = 0 -- where we recover p k = 1/2k, as numerically conjectured by Houdayer et al. and recently rigorously proved by Aldous -- and r→ + ∞. For 0 〈 r 〈 + ∞, we are not able to solve the equations analytically, but we compute the leading behavior of pk for large k.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/PL00011144
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  • 2
    Electronic Resource
    Electronic Resource
    On the finite size corrections to some random matching problems (2002)
    Springer
    The European physical journal 29 (2002), S. 457-468 
    Details
    ISSN: 1434-6036
    Keywords: PACS. 75.10.Nr Spin-glass and other random models – 02.60.Pn Numerical optimization
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract: We get back to the computation of the leading finite size corrections to some random link matching problems, first adressed by Mézard and Parisi [J. Phys. France 48, 1451 (1987)]. In the so-called bipartite case, their result is in contradiction with subsequent works. We show that they made some mistakes, and correcting them, we get the expected result. In the non bipartite case, we agree with their result but push the analytical treatment further.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1140/epjb/e2002-00326-3
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    Paper (German National Licenses)
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  • 3
    Electronic Resource
    Electronic Resource
    Numerical simulations of the dynamical behavior of the SK model (1998)
    Springer
    The European physical journal 2 (1998), S. 495-500 
    Details
    ISSN: 1434-6036
    Keywords: PACS. 75.10.-b General theory and models of magnetic ordering - 75.50.-y Studies of specific magnetic materials
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract: We study the dynamical behavior of the Sherrington Kirkpatrick model. Thanks to the APE supercomputer we are able to analyze large lattice volumes, and to investigate the low T region. We present a new and precise determination of the remnant magnetization and of its time decay exponent, of the energy time decay exponent, and we discuss aging phenomena in the model. We exclude validity of naive aging, and propose different options that fit the numerical data.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s100510050273
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    Paper (German National Licenses)
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  • 4
    Electronic Resource
    Electronic Resource
    Distribution of introduced Japanese macroalgae Undaria pinnatifida, Sargassum muticum (Phaeophyta) and Antithamnion Pectinatum (Rhodophyta) in the Lagoon of Venice (1998)
    Springer
    Hydrobiologia 385 (1998), S. 17-22 
    Details
    ISSN: 1573-5117
    Keywords: Undaria pinnatifida ; Sargassum muticum ; Antithamnion pectinatum ; Lagoon of Venice
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract The present distribution of invasive seaweeds Undaria pinnatifida (Phaeophyta, Laminariales) and Sargassum muticum (Phaeophyta, Fucales) in the Lagoon of Venice is updated in this work. The distribution of Antithamnion pectinatum (Rhodophyta, Ceramiales) is presented for the first time. All these species have quickly colonized the hard substrata competing with indigenous species. Competition acts differently in the two species, U. pinnatifida competing for the substratum and S. muticum for light. On tidal flats composed of silt and sand, the growth of two brown seaweeds is restricted owing to the lack of a solid substrata. While Undaria pinnatifida and Sargassum muticum have colonized only some areas of the lagoon in a short vertical range (from 0 to -3 m), Antithamnion pectinatum is present on the three portmouths, along the inner shores of the city of Venice, and in the lagoon islands with extensive vertical distribution (from +0.2 to -8 m).
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1023/A:1003437105147
    Library Location Call Number Volume/Issue/Year Availability
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    Paper (German National Licenses)
    Fulltext
  • 5
    Electronic Resource
    Electronic Resource
    Distribution of introduced Japanese macroalgae Undaria pinnatifida, Sargassum muticum (Phaeophyta) and Antithamnion Pectinatum (Rhodophyta) in the Lagoon of Venice (1998)
    Springer
    Hydrobiologia 385 (1998), S. 17-22 
    Details
    ISSN: 1573-5117
    Keywords: Undaria pinnatifida ; Sargassum muticum ; Antithamnion pectinatum ; Lagoon of Venice
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract The present distribution of invasive seaweeds Undaria pinnatifida (Phaeophyta, Laminariales) and Sargassum muticum (Phaeophyta, Fucales) in the Lagoon of Venice is updated in this work. The distribution of Antithamnion pectinatum (Rhodophyta, Ceramiales) is presented for the first time. All these species have quickly colonized the hard substrata competing with indigenous species. Competition acts differently in the two species, U. pinnatifida competing for the substratum and S. muticum for light. On tidal flats composed of silt and sand, the growth of two brown seaweeds is restricted owing to the lack of a solid substrata. While Undaria pinnatifida and Sargassum muticum have colonized only some areas of the lagoon in a short vertical range (from 0 to -3 m), Antithamnion pectinatum is present on the three portmouths, along the inner shores of the city of Venice, and in the lagoon islands with extensive vertical distribution (from +0.2 to -8 m).
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1023/A:1003437105147
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
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