activity
20092024
most citedQuillen's Plus Construction and the D(2) problem

9 citations · 37 across the 11 of their papers we have counts for

collaborators

11 papers

math.GR2024★ 1 cited

Periodic cohomology

Wajid Mannan

We offer a direct proof of an elementary result concerning cohomological periods. As a corollary we show that given a finitely generated stably free resolution of Z over a finite g…

math.GR2023★ 1 cited

Explicit generators for the relation module in the example of Gruenberg-Linnell

Wajid Mannan

Gruenberg and Linnell showed that the standard relation module of a free product of groups of the form could be generated by just generators, rais…

math.AT2023

The third homotopy module of a 2-complex

Wajid Mannan

Given a connected 2-complex X with fundamental group G, we show how pi_3(X) may be computed as a module over Z[G]. Further we show that if X is a finite connected 2-complex with G…

math.AT2023★ 9 cited

The D(2) property for

Wajid Mannan

Wall's D(2) problem asks if a cohomologically 2-dimensional geometric 3-complex is necessarily homotopy equivalent to a geometric 2-complex. We solve part of the problem when the f…

math.AT2023★ 9 cited

Quillen's Plus Construction and the D(2) problem

Wajid Mannan

Given a finite connected 3-complex with cohomological dimension 2, we show it may be constructed up to homotopy by applying the Quillen plus construction to the Cayley complex of a…

math.AT2023

Duality in the homology of 5-manifolds

Wajid Mannan

We show that the homological properties of a 5-manifold M with fundamental group G are encapsulated in a G-invariant stable form on the dual of the third syzygy of Z. In this notat…

math.RA2023★ 7 cited

Homotopy types of truncated projective resolutions

Wajid Mannan

We work over an arbitrary ring R. Given two truncated projective resolutions of equal length for the same module we consider their underlying chain complexes. We show they may be s…

math.AT2023★ 1 cited

A fake Klein bottle with bubble

Wajid Mannan

We resolve the question of the existence of a finite 2-complex with the same fundamental group and Euler characteristic as a Klein bottle with a bubble, but homotopically distinct…

math.GR2011★ 2 cited

A commutative version of the group ring

Wajid Mannan

We construct a commutative version of the group ring and show that it allows one to translate questions about the normal generation of groups into questions about the generation of…

math.KT2009

Computing Borel's Regulator II

Zacky Choo, Wajid Mannan, Rubén J. Sánchez-García +1

This paper has been merged with arXiv:0908.3765

math.KT2009★ 7 cited

Computing Borel's Regulator

Zacky Choo, Wajid Mannan, Rubén J. Sánchez-García +1

We present an infinite series formula based on the Karoubi-Hamida integral, for the universal Borel class evaluated on H_{2n+1}(GL(\mathbb{C})). For a cyclotomic field F we define…