Words Maps and Spectra of Random Graph Lifts (2008)
We begin with a new analysis of formal words. Let w be a formal word in letters g_1,...,g_k. The word map associated with w maps the permutations s_1,...,s_k in S_n to the permutation obtained by...
for many illuminating discussions, and Elchanan Ben-Porath, Eddie Dekel, (2008)
Dean P. Foster, Sergiu Hart, Tom Ferguson, Martin Hellwig, Eugene K, Paul Klemperer, ...
We propose a measure of riskiness of “gambles ” (risky assets) that is objective: it depends only on the gamble. The measure is based on identifying for every gamble the critical wealth level...