
Contents
List of Figures xiii
List of Tables xv
Preface xvii
Acknowledgment xxi
About the Authors xxiii
1 Introduction 1
1.1 SetPartitions,Stirling,andBellNumbers................... 1
1.1.1 DefinitionofStirlingandBellNumbers ................ 2
1.1.2 EarlyHistoryofStirlingandBellNumbers .............. 6
1.2 Commutation Relations and Operator Ordering . . . . . . . . . . . . . . . 8
1.2.1 Operational(orSymbolical)Calculus ................. 9
1.2.2 Early Results for Normal Ordering Operators . . . . . . . . . . . . . 12
1.2.3 OperatorOrderinginQuantumTheory ................ 15
1.3 NormalOrderingintheWeylAlgebraandRelatives ............. 18
1.4 ContentoftheBo