Measures on Topological Semigroups: Convolution Products and Random Walks

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547 Arunava Mukherjea Nicolas A.Tserpes Measures on

Topological Semigroups: Convolution Products and Random Walks

Springer-Verlag Berlin.Heidelberg 9New York 1976

Authors

Prof. Arunava Mukherjea Prof. Nicolas A. T s e r p e s University of South Florida Department of Mathematics Tampa, Florida 3 3 6 2 0 / U S A

AMS Subject Classifications (1970): 43A05, 60G50, 60.115 ISBN 3-540-07987-4 Springer-Verlag Berlin 9 Heidelberg 9 New York ISBN 0-38?-0?987-4 Springer-Verlag New York 9 Heidelberg 9 Berlin This -work is subject to copyright. All rights are reserved, whether the whole or part of the material is concerned, specifically those of translation, reprinting, re-use of illustrations, broadcasting, reproduction by photocopying machine or similar means, and storage in data banks. Under w 54 of the German Copyright Law where copies are made for other than private use, a fee is payable to the publisher, the amount of the fee to be determined by agreement with the publisher. 9 by Springer-Verlag Berlin 9 Heidelberg 1976 Printed in Germany Printing and binding: Beltz Offsetdruck, Hemsbach/Bergstr.

Preface This monograph

is an outgrowth

of the lecture notes of a

series of lectures given by the first author Statistical supplement

Institute

material

during the fall of 1973.

in many ways the material

"Probabilities

on Algebraic

that appears

Processes:

much to these two mathematicians.

of colloquium

in the book

by Ulf Grenander

Behavior"

who have worked

a number of stimulating

These notes

and the

IV and V of the book "Markov

and Asymptotic

Like most mathematicians

group Symposium

presented

Structures"

in Chapters

Structure

when he was invited

in the Indian

by M. Rosenblatt.

in this area, we owe

We also gratefully

conversations

acknowledge

with Prof. M. Rosenblatt

to speak in the Wayne

State University

Semi-

in 1968 and when he was invited to give a series

talks at the University

of South Florida

in early

1973. Our primary objective reader with a brief, of probability

but somewhat

of probability

topological

measures

values

of products

of one-sided

probability Hausdorff

measure

completely

and

iterates

semigroups,

random variables

semigroup

of

on locally

(iii) almost

and

sure taking

(iv) the recurrence

random walks induced by a

on a compact Hausdorff simple topological

interesting

or locally compact

semigroup.

of probability

while leaving out many other

in the

(ii) the limit behavior

matrices

and two-sided

cover only certain aspects

measures

topological

of independent simple

semigroups

sequence of convolution

of stochastic

in a completely

behavior

account of the theory

probability

on different

the

(i) the characterization

semigroups

and unaveraged

also on semigroups convergence

problems:

and r*-invariant

compact Hausdorff of the averaged

complete

and measure on topological

context of the following the idempotent

in these notes is to provide

Thus our notes

theory on semigroups aspects

such as the study

IV of infinitely d