… Beginning with the January 2010 issue, Memoirs is accessible from www.ams.org/journals.
The 2013 subscription begins with volume 221 and consists of six mailings, each containing …

… covered in this volume include polyhedral structures on tropical varieties, the structure theory
of … Additional articles selected for inclusion in this volume represent other facets of current …

… By establishing regularity properties of the Riemannian … structure is not fully right invariant,
but still semi-invariant with respect to the subgroup of volume preserving diffeomorphisms. …

… metric on the volume preserving diffeomorphism group. Arnold’… introduced Hilbert manifolds
of diffeomorphisms of class Hq, … (S1), we need precise regularity properties of solutions to (11…

… structure under diffeomorphism-based changes of observers. Such a requirement and
appropriate regularity … the group of volume-preserving diffeomorphisms that determine horizontal …

… Beginning with the January 2010 issue, Memoirs is accessible … For this purpose, we need a
diffeomorphism of E onto … known regularity theory for the Stokes problem that all components …

… structure. Using the corresponding Lie groupoids of multiphase diffeomorphisms instead of
the Lie group of volume-… Lie groupoids of multiphase volume-preserving diffeomorphisms [59, …

… First we drop the diffeomorphism hypothesis. Secondly we give estimates in global Sobolev
… composition of two operators. Taking a symbol \(a\in \Gamma ^m_0\) with limited regularity …

… of diffeomorphisms of the manifold, then unit volume G-invariant Einstein metrics are the critical
points of the restriction of the Hilbert action to the subspace of unit volume … 226 that each …

… The interest in (fractional) order metrics on diffeomorphism … on the group of volume preserving
diffeomorphisms. Since then, … regularity give solutions of higher regularity in the long term. …