Eine globalanalytische Behandlung des Douglas'schen Problems.
Elliptic cohomologies: an introductory survey.
Let α and β be any angles then the known formula sin (α+β) = sinα cosβ + cosα sinβ becomes under the substitution x = sinα, y = sinβ, sin (α + β) = x √(1 - y2) + y √(1 - x2) =: F(x,y). This addition formula is an example of "Formal group law", which show up in many contexts in Modern Mathematics.In algebraic topology suitable cohomology theories induce a Formal group Law, the elliptic cohomologies are the ones who realize the Euler addition formula (1778): F(x,y) =: (x √R(y) + y √R(x)/1 - εx2y2)....
Elliptic operators and covers of Riemannian manifolds.
Equivariant Bott-Chern currents and the Ray-Singer analytic torsion.
Errata to the Paper: On the Heat Equation and the Index Theorem.
Erratum to Von Neumann Spectra Near Zero.
Espaces de Krein et index des systèmes hamiltoniens
Eta invariants of Dirac operators on locally symmetric manifolds.