51 citations
9 papers
The scale of market quakes
T. Bisig, A. Dupuis, V. Impagliazzo +1
We define a methodology to quantify market activity on a 24 hour basis by defining a scale, the so-called scale of market quakes (SMQ). The SMQ is designed within a framework where…
Anomalies in Universal Intensity Scaling in Ultrarelativistic Laser-Plasma Interactions
T. J. M. Boyd, R. Ondarza-Rovira
Laser light incident on targets at intensities such that the electron dynamics is ultrarelativistic gives rise to a harmonic power spectrum extending to high orders and characteriz…
Graph-theoretic criteria for injectivity and unique equilibria in general chemical reaction systems
Murad Banaji, Gheorghe Craciun
In this paper we discuss the question of how to decide when a general chemical reaction system is incapable of admitting multiple equilibria, regardless of parameter values such as…
Evolving controllers for simulated car racing
Julian Togelius, Simon M. Lucas
This paper describes the evolution of controllers for racing a simulated radio-controlled car around a track, modelled on a real physical track. Five different controller architect…
Biquaternion (complexified quaternion) roots of -1
Stephen J. Sangwine
The roots of -1 in the set of biquaternions (quaternions with complex components, or complex numbers with quaternion real and imaginary parts) are studied and it is shown that ther…
Is Computation Reversible?
Michael C. Parker, Stuart D. Walker
Recent investigations into the physical nature of information and fundamental limits to information transmission have revealed questions such as the possibility of superluminal dat…