| 11. | These results are important milestones in the development of analytic number theory.
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| 12. | Arithmetic geometry is an active field combining algebraic geometry and number theory.
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| 13. | Robinson explored such areas as logic, set theory, complex analysis and number theory.
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| 14. | There he produced his first textbook, an introduction to number theory.
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| 15. | Number theory is the study of the basic properties of numbers.
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| 16. | His main fields of study were algebra, number theory and combinatorics.
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| 17. | Bernhard Riemann made some famous contributions to modern analytic number theory.
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| 18. | Green has published several results in both combinatorics and number theory.
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| 19. | So far, he has only looked properly in one place : number theory.
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| 20. | She works in number theory and the theory of mathematical symmetry.
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