We study the spectral problems for the spatially periodic flows of inviscid incompressible fluid. The basic flows under consideration are the shear flows whose profiles oscillate on high frequencies. For such flows, we present asymptotic expansions of the unstable eigenvalues in the case when the limit spectral problem has multiple eigenvalues.

We develop Markov approximations for very general suspension flows. Based on this, we obtain a stretched exponential bound on time correlation functions for 3-D Anosov flows that verify ‘uniform nonintegrability of foliations’. These include contact Anosov flows and geodesic flows on compact surfaces of variable negative curvature. Our bound on correlations is stable under small smooth perturba...

The paper presents a comprehensive survey of the ‘shopping list’ of sources of external finance that are directly channelled to the business sector of developing countries. Generally, our analytical survey covers the 1970-2000 period, and includes the distribution of foreign resources classified according to the different income-based and geographical breakdown of developing countries. We exami...

We show that (i) different collateral requirements across countries in securitized markets lead to net international capital flows, and (ii) the ability to tranche asset-backed securities in one country leads to offsetting portfolio flows, creating gross financial flows. We use a general equilibrium model with two countries, collateralized borrowing, and securitized markets. Financial systems d...

In this paper, we analyze the stability of XCP (eXplicit Control Protocol) in a network with heterogeneous XCP flows (i.e., XCP flows with different propagation delays). Specifically, we model a network with heterogeneous XCP flows using fluid-flow approximation. We then derive the conditions that XCP control parameters should satisfy for stable XCP operation. Furthermore, through several numer...

This paper examines the impact of uncertain capital flows on growth to a group of 60 developing countries during the 1990s. We distinguish between total capital flows, official capital flows and private capital flows. For the three types of capital flows we derive a yearly uncertainty measure. We use the yearly uncertainty measures in ordinary least squares estimates, as well as system GMM esti...

In this thesis, a stateless active queue management algorithm called “PUNSI” which aims to achieve fair bandwidth allocation in congested routers is proposed. This algorithm prevents unresponsive flows from dominating available bandwidth shared with responsive flows by penalizing packets from unresponsive flows hopefully with a higher probability than those from responsive flows. It is motivate...

The tame flows are “nice” flows on “nice” spaces. The nice (tame) sets are the pfaffian sets introduced by Khovanski, and a flow Φ : R×X → X on pfaffian set X is tame if the graph of Φ is a pfaffian subset of R×X×X . Any compact tame set admits plenty tame flows. We prove that the flow determined by the gradient of a generic real analytic function with respect to a generic real analytic metric ...

This paper exploits a survey of manufacturing firms in five transitioning countries to evaluate the factors that affect whether or not information on contractual disputes between firms is disseminated to other market participants. We find that these reputation flows are channeled both through informal communication among firms as well as through third party organizations; in addition, they are ...