]> 2026-06-11T20:51:48+00:00 Cyclic group:Z4 0 en Cyclic group:Z4 Homomorph-containing not implies no nontrivial homomorphism to quotient group 0 en Homomorph-containing not implies no nontrivial homomorphism to quotient group Second cohomology group for trivial group action of V4 on Z4 0 en Second cohomology group for trivial group action of V4 on Z4 Second cohomology group for trivial group action of D8 on Z4 0 en Second cohomology group for trivial group action of D8 on Z4 Second cohomology group for trivial group action of E8 on Z4 0 en Second cohomology group for trivial group action of E8 on Z4 Second cohomology group for trivial group action of Z4 on Z2 0 en Second cohomology group for trivial group action of Z4 on Z2 Z4 0 en Z4 Particular example 132 en Particular example Specific information about 132 en Specific information about REDI 132 en REDI