Updated with a new chapter that draws on behavioral finance, the field that studies the psychology of investment decisions, the bestselling guide to investing e

Random walks are stochastic processes formed by successive summation of independent, identically distributed random variables and are one of the most studied to

The heat equation can be derived by averaging over a very large number of particles. Traditionally, the resulting PDE is studied as a deterministic equation, an

This book is devoted exclusively to a very special class of random processes, namely, to random walk on the lattice points of ordinary Euclidian space. The auth

The classical theory of random walks describes the asymptotic behavior of sums of independent identically distributed random real variables. This book explains