| 41. | The modules of a vertex algebra form an abelian category.
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| 42. | He also taught courses on algebraic functions and abelian integrals.
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| 43. | This gives a contravariant functor from manifolds to abelian groups.
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| 44. | This gives rise to abelian extensions of CM-fields in general.
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| 45. | The conjecture has been proved for finitely generated abelian groups.
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| 46. | It can readily be generalized to an arbitrary non-Abelian group.
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| 47. | :" Mixed Hodge structures form an abelian category.
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| 48. | There is a well-known notion for abelian groups.
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| 49. | The word " abelian " appears in lowercase all over the place.
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| 50. | :We shall now restrict our attention to abelian categories.
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