scholarly journals Noncommutative Spheres and Instantons

Author(s):  
G. Landi
2015 ◽  
Vol 59 (1) ◽  
pp. 219-233 ◽  
Author(s):  
Teodor Banica ◽  
Szabolcs Mészáros

2005 ◽  
Vol 260 (1) ◽  
pp. 203-225 ◽  
Author(s):  
Giovanni Landi ◽  
Walter van Suijlekom

2014 ◽  
Vol 55 (4) ◽  
pp. 041705 ◽  
Author(s):  
Joakim Arnlind

2017 ◽  
Vol 111 ◽  
pp. 101-144 ◽  
Author(s):  
Teodor Banica

2018 ◽  
Vol 30 (10) ◽  
pp. 1850020
Author(s):  
Michel Dubois-Violette ◽  
Xiao Han ◽  
Giovanni Landi

We present examples of noncommutative four-spheres that are base spaces of SU(2)-principal bundles with noncommutative seven-spheres as total spaces. The noncommutative coordinate algebras of the four-spheres are generated by the entries of a projection which is invariant under the action of SU(2). We give conditions for the components of the Connes–Chern character of the projection to vanish but the second (the top) one. The latter is then a non-zero Hochschild cycle that plays the role of the volume form for the noncommutative four-spheres.


2010 ◽  
Vol 298 (2) ◽  
pp. 343-356 ◽  
Author(s):  
Teodor Banica ◽  
Debashish Goswami

2003 ◽  
Vol 241 (1) ◽  
pp. 161-175 ◽  
Author(s):  
Andrzej Sitarz

2000 ◽  
Vol 2000 (10) ◽  
pp. 008-008 ◽  
Author(s):  
Antal Jevicki ◽  
Mihail Mihailescu ◽  
Sanjaye Ramgoolam

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