29,906 research outputs found
Finite dimensional approximations to Wiener measure and path integral formulas on manifolds
Certain natural geometric approximation schemes are developed for Wiener
measure on a compact Riemannian manifold. These approximations closely mimic
the informal path integral formulas used in the physics literature for
representing the heat semi-group on Riemannian manifolds. The path space is
approximated by finite dimensional manifolds consisting of piecewise geodesic
paths adapted to partitions of . The finite dimensional manifolds of
piecewise geodesics carry both an and a type Riemannian
structures . It is proved that as the mesh of the partition tends to
,
where is the energy of the piecewise geodesic path , and
for and , is a ``normalization'' constant, is
the Riemannian volume form relative , and is Wiener measure on
paths on . Here and
where is the scalar curvature of . These results are also shown to
imply the well know integration by parts formula for the Wiener measure.Comment: 48 pages, latex2e using amsart and amssym
Charmed scalar resonances -- Conventional and four-quark mesons
We propose that there coexist two scalar mesons of different structures (a
conventional meson and a four-quark meson) in the recently observed broad bumps
just below the large peak of the tensor meson in the D-pi mass distribution. We
base this proposal on the interpretation of the charm-strange scalar meson of
mass 2317 MeV as a four-quark meson. The strange counterparts of these scalar
mesons are also studied.Comment: 4 pages, 0 figures, Revte
Level-of-Aspiration Theory and Initial Stance in Bargaining
This research focuses on the effect of initial stance in bargaining. Following level-of-aspiration theory, the research examines whether the pattern of early concession making modifies the impact of tough vs. soft initial stance. The experiment manipulated opponent\u27s concession pattern (decreasing, constant, increasing) in the early phase of bargaining within an overall tough or soft initial stance. Results indicated that a decreasing concession pattern within the early bargaining extracted larger initial concessions than a constant or increasing concession pattern. Implications for Siegel and Fouraker\u27s (1960) level-of-aspiration theory are discussed
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