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Line bundles and the Thom construction in noncommutative geometry
Line bundles Thom construction noncommutative geometry
2011/1/19
The idea of a line bundle in classical geometry is transferred to noncommutative geometry by the idea of a Morita context. From this we can construct Z and N graded algebras, the Z graded algebra bein...
Direct Construction of Grassmann, Clifford and Geometric Algebras
Direct Construction of Grassmann Clifford and Geometric Algebras
2010/11/22
This is a simple way rigorously to construct Grassmann, Clifford and Geometric Algebras, allowing degenerate bilinear forms, infinite dimension, using fields or certain modules (characteristic 2 with ...
Construction of Frequency Hopping Sequence Set Based upon Generalized Cyclotomy
Construction Frequency Hopping Sequence Generalized Cyclotomy
2010/12/8
Frequency hopping (FH) sequences play a key role in frequency hopping spread spectrum ommunication systems. It is important to find FH sequences which have simultaneously good Hamming correlation，larg...