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Locally flat embeddings of 3-manifolds in S4 J.A.Hillman The ...

Proof. We shall begin by using Andrews-Curtis (AC) moves to modify the. ... relators rn1 = an1,. , rnr = anr to P1, to get an AC-equivalent presentationfor G1 for which the corresponding presentation matrix for G.
www.maths.usyd.edu.au/u/jonh/embook.pdf

Locally flat embeddings of 3-manifolds in S4 J.A.Hillman The ...

Proof. We shall begin by using Andrews-Curtis (AC) moves to modify the. ... αnr | ρ1,. , ρnr⟩ for G2 which is AC-equivalent to P2 and for whichthe corresponding presentation matrix for Gab2 is the block diagonal matrix D2 =(Ctr 00 Ir.
www.maths.usyd.edu.au/u/pubs/publist/preprints/2024/hillman-2.pdf