List of Figures; List of Tables; Preface; Chapter 1: Historical Perspective of Mathematical Demography; Chapter 2: Gender Structure and the Problem of Modeling Marriages; Chapter 3: Well-Posedness of the Fredrickson-Hoppensteadt Two-Sex Model; Chapter 4: Numerical Methods; Chapter 5: Age Profiles and Exponential Growth; Appendix: The Main Algorithm; Bibliography; Index.