Power series provide a technique for constructing examples of commutative rings. In this book, the authors describe this technique and use it to analyse properties of commutative rings and their spectra. This book presents results obtained using this approach.
A selection of papers of I. Piatetski-Shapiro that represents almost 50 years of his mathematical activity. Included are many of his major papers in... Læs mere
This is the ninth book of problems and solutions from the American Mathematics Competitions (AMC) contests. It chronicles... Læs mere
Examines lower bounds on multilinear operators with Gaussian kernels acting on Lebesgue spaces, with exponents below one. The authors put forward... Læs mere
Provides the spectral expansion in a weighted Hilbert space of a substantial class of invariant non-self-adjoint and non-local Markov operators which appear in limit theorems for positive-valued Markov processes.