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zbMath1199.57001MaRDI QIDQ3642549

Daniel Matei

Publication date: 5 November 2009

Title: zbMATH Open Web Interface contents unavailable due to conflicting licenses.

zbMATH Keywords

fundamental group first Betti number presentations, free differential calculus, finite index subgroup

Mathematics Subject Classification ID

Covering spaces and low-dimensional topology (57M10) Cohomology of groups (20J06) Topological methods in group theory (57M07) Fundamental group, presentations, free differential calculus (57M05) Massey products (55S30)

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