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hep-th2025
Quantum variational calculus on a lattice
Shahn Majid, Francisco Simão
We solve the long-standing problem of variational calculus on a noncommutative space or spacetime for a significant class of models with trivial jet bundle. Our approach entails a…
hep-th2025
Finite group gauge theory on graphs and gravity-like modes
Shahn Majid, Francisco Simão
We study gauge theory with finite group on a graph using noncommutative differential geometry and Hopf algebra methods with -valued holonomies replaced by gauge fields v…