What is known today as the Lee-Friedrichs model is characterized by a self-adjoint operator H on a Hilbert space H, which is the sum of two self-adjoint operators H0 and V , such that H,H0 and V have common domain; H0 has absolutely continuous spectrum (of uniform multiplicity) except for the end-point of the semi-bounded from below spectrum, and one or more eigenvalues which may or may not be ...

Spot Rate Models 3 Equivalent Martingale Measure (Reference Only) . . . . . . . . . . . . . . . . . . 3 Spot Rate Models: Ideas . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 The Bond Price Equation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 Inversion of the Yield Curve . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 Affine Term Structure Mo...

Peer-to-Peer (P2P) Systeme haben sich zu einer viel versprechenden Alternative für die Gestaltung von Anwendungen im Internet entwickelt. Die zunehmende Dezentralisierung von Intrusion Detection Systemen sowie der verstärkte Einsatz in mobilen Umgebungen legt die Nutzung des Peer-to-Peer-Prinzips auch für Intrusion Detection Systeme nahe. Erste Ansätze zu P2P Intrusion Detection Systemen wurden...

The migration of a rigid sphere in a two-dimensional unidirectional shear flow of a second-order fluid was considered by Ho & Leal (1976). It was found that the sphere would migrate in the direction of decreasing absolute shear rate. The present paper extends the previous results to a general quadratic flow, and also considers the case of a spherical drop.

Gravier et al. proved [S. Gravier, M. Mollard, Ch. Payan, On the existence of three-dimensional tiling in the Lee metric, European J. Combin. 19 (1998) 567–572] that there is no tiling of the three-dimensional space R3 with Lee spheres of radius at least 2. In particular, this verifies the Golomb–Welch conjecture for n = 3. Špacapan, [S. Špacapan, Non-existence of face-to-face four-dimensional ...

Any opinions expressed in this memoir are those of the author(s) and do not necessarily reflect the views of the National Academy of Sciences.

1. Research Overview Since Dr. Lee joined the School of Industrial Engineering at Purdue University in 2007, he and his research team have made significant efforts to develop novel control approaches to the large-scale complex systems. These endeavors are in particular from the multidisciplinary perspective, recognizing that such an approach is capable of producing the simple yet effective tech...

In 1952, Lee and Yang published two important papers [1, 2] in statistical mechanics. They gave us a new way of looking at the nature of phase transitions, and suggested that we can regard partition functions as functions of external fields (in the case of Ising model, this would be magnetic fields), whose domains can be extended to the complex plane. In particular, they proved a series of Lee-...