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Abelian group

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Abelian group [ə′bēl·yən ′grüp]
(mathematics)
A group whose binary operation is commutative; that is,ab = bafor eachaandbin the group. Also known as commutative group.


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Among the topics discussed by the research articles are symplectic Heegaard splittings and linked abelian groups, differential characters and the Steenrod squares, relative weight filtrations on completions of mapping class groups, symplectic automorphism groups of nilpotent quotient of fundamental groups of surfaces, and new examples of elements in the kernel of the Magnus representation of the Torelli groups.
The approach in [12] culminates in the deep investigation of Balan, Casazza, Heil, and Landau [1, 2] who have found a density theory for a general class of frames that are labeled by a discrete Abelian group.
 
 
 
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