Rational Lie Algebras and p-Isomorphisms of Nilpotent Groups and Homotopy Types.
Rational models of solvmanifolds with Kählerian structures.
We investigate the existence of symplectic non-Kählerian structures on compact solvmanifolds and prove some results which give strong necessary conditions for the existence of Kählerian structures in terms of rational homotopy theory. Our results explain known examples and generalize the Benson-Gordon theorem (Benson and Gordon (1990); our method allows us to drop the assumption of the complete solvability of G).
Rational nilpotent groups as subgroups of self-homotopy equivalences
Rational string topology
We use the computational power of rational homotopy theory to provide an explicit cochain model for the loop product and the string bracket of a simply connected closed manifold . We prove that the loop homology of is isomorphic to the Hochschild cohomology of the cochain algebra with coefficients in . Some explicit computations of the loop product and the string bracket are given.
Rational toral ranks in certain algebras.
Rational Universal Fibrations and Flag Manifolds.
Rationale Homotopietypen.
Rationalization of Hopf G-Spaces..
Räume normierter Bilinearformen und Cliffordstrukturen.
Real cobordism and greek letter elements in the geometric chromatic spectral sequence.
Real cohomology groups of the space of nonsingular curves of degree 5 in
Real Homotopy Theory of Kähler Manifolds.
Real versus complex K-theory using Kasparov's bivariant KK-theory.
Realisierung formaler Gruppen durch Kohomologiefunktoren.
Realising formal groups.
Realization and nonrealization of Poincaré duality quotients of 𝔽₂[x,y] as topological spaces
Realization of fixed point sets of relative maps
Given a relative map f: (X,A) → (X,A) on a pair (X,A) of compact polyhedra and a closed subset Y of X, we shall give some criteria for Y to be the fixed point set of some map relatively homotopic to f.
Realization of homotopy classes by algebraic mappings.
Realization of posets.
Realization Problems for the Group of Homotopy Classes of Self-Equivalences.