We revisit the problem of semi-flexible chain condensation by neutral depleting agents (e.g. colloidal spheres or flexible polymers) by using a simple formalism that allows us to address its main features without specifying the kind of depleting agents. Correlations between depleting agents are shown to produce a reswelling of the chain at high enough volume fraction, consistent with an earlier...

The stock markets are sentiment driven markets. Human psychology plays an important part in deciding the market movements. Usually three types of sentiments are seen in the stock markets, namely bullish, neutral and bearish. The Bullish sentiment indicates that the buyers are more than sellers and the buyers are confident about the market, so they outnumber sellers causing the market prices to ...

In a historical first-tim e con­ ference to be held next week at the U niversity o f Notre Dame, officials of the African National Congress (ANC) w ill meet U.S. gove rnm en t rep re sen ta tives and executives from more than 40 m ajor U.S. corporations to discuss a policy for investment in post-apartheid South Africa. Over the weekend, the ANC notified Notre Dame that it in ­ vited representat...

We show pathological behavior of asset price processes modeled by continuous strict local martingales under a risk-neutral measure. The inspiration comes from recent results on financial bubbles. We analyze, in particular, the effect of the strict nature of the local martingale on the usual formula for the price of a European call option, especially a strong anomaly when call prices decay monot...

We provide the option pricing formula of the SV-DEJ model as follows. Following the assumptions in Yu, Li and Wells (2011), we let γ (1) t = η svt and γ t = − 1 √ 1−ρ2 (ρη+ η v σv ) √ vt, where η s and η are the market prices of risk. Then there exists a risk-neutral measure Q under which W (1) t (Q) and W (2) t (Q) are standard Brownian motions: dW (i) t (Q) := dW (1) t + γ t dt, i = 1, 2 (Equ...

We consider a setK = ⋃ n∈N Kn of nite structures such that all members of Kn have the same universe, the cardinality of which approaches ∞ as n → ∞. Each structure in K may have a nontrivial underlying pregeometry and on each Kn we consider a probability measure, either the uniform measure, or what we call the dimension conditional measure. The main questions are: What conditions imply that for...

Automatic Design of Algorithms Through Evolution (ADATE) [2] is a system for automatic programming based on the neutral theory of evolution [1] . This theory states that the majority of molecular changes in evolution are due to neutral or almost neutral mutations. A consequence is that most of the variability and polymorphism within a species comes from mutation-driven drift of alleles that are...

We consider a (B, S)-security market with standard riskless asset B(t) = B0ert and risky asset S(t) with stochastic volatility depending on time t and the history of stock price over the interval [t − τ, t]. The stock price process S(t) satisfies a stochastic delay differential equation (SDDE) with past-dependent diffusion coefficient. We state some results on option pricing in such a market an...

Please cite this article in press as: Novikov YN e fect. Microelectron Reliab (2009), doi:10.1016/j The charge transport mechanism in amorphous alumina, Al2O3, is investigated both theoretically and experimentally. We found that the experimental current–field–temperature dependencies can hardly be understood based on the commonly used Frenkel effect or the thermally-assisted tunneling model. In...

We solve the problem of pricing and optimal exercise of American call-type options in markets which do not necessarily admit an equivalent local martingale measure. This resolves an open question proposed by Fernholz and Karatzas [Stochastic Portfolio Theory: A Survey, Handbook of Numerical Analysis, 15:89168, 2009].