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#### How often is a permutation an n'th power?

(1997)

We give a short argument that for any fixed n, the probability that a permutation on m letters is an n'th power is asymptotically C m^{phi(n)/n - 1}.

#### Evolutionary dynamics while trapped in resonance: a Keplerian binary system perturbed by gravitational radiation

(American Institute of Physics, 1997)

The method of averaging is used to investigate the phenomenon of capture into resonance for a model that describes a Keplerian binary system influenced by radiation damping and external normally incident periodic gravitational ...

#### Gravitational ionization: a chaotic net in the Kepler system

(American Institute of Physics, 1997)

The long-term nonlinear dynamics of a Keplerian binary system under the combined influences of gravitational radiation damping and external tidal perturbations is analysed. Gravitational radiation reaction leads the binary ...

#### Quasielastic neutron scattering and molecular dynamics simulation studies of the melting transition in butane and hexane monolayers adsorbed on graphite

(American Institute of Physics, 1997)

on butane and hexane monolayers adsorbed on an exfoliated graphite substrate. For butane, quasielastic scattering broader than the experimental energy resolution width of 70 [

**mu**]eV appears abruptly at the monolayer melting point of Tm = 116 K, whereas...#### Annotated bibliography 1986-1990

(1997-10)