Quantum fluctuation expression of the baryon number for a subsystem consisting hot relativistic spin-$\frac{1}{2}$ particles are derived. These fluctuations seems to diverge in limit where system size goes zero. For broad range thermodynamic parameters numerical solutions obtained which might be helpful interpret heavy-ion experimental data.

Chern number is usually characterized by Berry curvature. Here, investigating the Dirac model of even-dimensional insulator, we give general relation between curvature and quantum metric, which indicates that can be encoded in metric as well surface area Brillouin zone on hypersphere embedded Euclidean parameter space. We find there a corresponding relationship such hypersphere. geometrical pro...

I examine whether firms exploit a publicly traded parent–subsidiary structure to issue equity of the overvalued firm regardless of which firm needs funds, and whether this conveys opposite information about firm values. Using 90 subsidiary and 37 parent seasoned equity offering (SEO) announcements during 1981–2002, I document negative returns to issuers but insignificant returns to nonissuers i...

EXECUTIVE SUMMARY GHI, an international service conglomerate, recently acquired a new subsidiary in an Asian country. A new information system was planned to facilitate the re-branding of the subsidiary. The project was outsourced to an application service provider through a consultant. A functional manager from another subsidiary in the country was assigned to assist the development of specifi...