14 citations · 37 across the 8 of their papers we have counts for
8 papers
A theory of twisted umkehr maps
Anssi Lahtinen
We develop a theory of umkehr maps for twisted generalized homology theories. In this theory, interesting umkehr maps, including generalizations of important classical ones, are in…
String topology of finite groups of Lie type
Jesper Grodal, Anssi Lahtinen
We show that the mod cohomology of any finite group of Lie type in characteristic different from admits the structure of a module over the mod cohomology o…
Homology operations revisited
Anssi Lahtinen
The mod p homology of E-infinity spaces is a classical topic in algebraic topology traditionally approached in terms of Dyer--Lashof operations. In this paper, we offer a new persp…
Modular characteristic classes for representations over finite fields
Anssi Lahtinen, David Sprehn
The cohomology of the degree- general linear group over a finite field of characteristic , with coefficients also in characteristic , remains poorly understood. For exampl…
Higher operations in string topology of classifying spaces
Anssi Lahtinen
Examples of non-trivial higher string topology operations have been regrettably rare in the literature. In this paper, working in the context of string topology of classifying spac…
On string topology of classifying spaces
Richard Hepworth, Anssi Lahtinen
Let G be a compact Lie group. By work of Chataur and Menichi, the homology of the space of free loops in the classifying space of G is known to be the value on the circle in a homo…