Topological Hochschild (resp. topological cyclic) homology is an adaptation of Hochschild (resp. cyclic) homology to the setup of ring spectra. They are introduced in
M. Bökstedt, Topological Hochschild homology, Bielefeld, 1985, 1988
M. Bökstedt, W.C. Hsiang, Ib Madsen, The cyclotomic trace and algebraic K-theory of spaces, Invent. Math. 111 (1993), 463-539, MR94g:55011, doi
M. Bökstedt, I. Madsen, Topological cyclic homology of the integers, -theory (Strasbourg, 1992). Astérisque 226 (1994), 7–8, 57–143.
and a further generalization is defined in
Bjørn Ian Dundas, Randy McCarthy, Topological Hochschild homology of ring functors and exact categories, J. Pure Appl. Algebra 109 (1996), no. 3, 231–294, MR97i:19001, doi
These theories are the target for the trace map from -theory, so they can be viewed as an approximation to algebraic K-theory of a ring spectrum.
T. Pirashvili, F. Waldhausen, Mac Lane homology and topological Hochschild homology, J. Pure Appl. Algebra 82 (1992), 81-98, MR96d:19005, doi
T. Pirashvili, On the topological Hochschild homology of , Comm. Algebra 23 (1995), no. 4, 1545–1549, MR97h:19007, doi
Z. Fiedorowicz, T. Pirashvili, R. Schwänzl, R. Vogt, F. Waldhausen, Mac Lane homology and topological Hochschild homology, Math. Ann. 303 (1995), no. 1, 149–164, MR97h:19007, doi
Bjørn Ian Dundas, Relative K-theory and topological cyclic homology, Acta Math. 179 (1997), 223-242, pdf
Thomas Geisser, Lars Hesselhoft, Topological cyclic homology of schemes, in: Algebraic -theory (Seattle, WA, 1997), 41–87, Proc. Sympos. Pure Math. 67, Amer. Math. Soc. 1999, MR2001g:19003; K-theory archive
Thomas Geisser, Motivic Cohomology, K-Theory and Topological Cyclic Homology, Handbook of K-theory II.1, pdf
R. McCarthy, Relative algebraic K-theory and topological cyclic homology, Acta Math. 179 (1997), 197-222.
Ricardo Andrade, THH notes, MIT juvitop seminar pdf, babytop seminar pdf
Anatoly Preygel, Hochschild homology notes, juvitop seminar, pdf
Gunnar Carlsson, Christopher L. Douglas, Bjørn Ian Dundas, Higher topological cyclic homology and the Segal conjecture for tori, Adv. Math. 226 (2011), no. 2, 1823–1874, MR2737802, doi