A remark on the flow near a compact invariant set
نویسندگان
چکیده
منابع مشابه
A remark on left invariant metrics on compact Lie groups
The investigation of manifolds with non-negative sectional curvature is one of the classical fields of study in global Riemannian geometry. While there are few known obstruction for a closed manifold to admit metrics of non-negative sectional curvature, there are relatively few known examples and general construction methods of such manifolds (see [Z] for a detailed survey). In this context, it...
متن کاملA Remark on Ricci Flow of Left Invariant Metrics
We prove that the Ricci flow equation for left invariant metrics on Lie groups reduces to a first order ordinary differential equation for a map Q : (−a, a) → UT , where UT is the group of upper triangular matrices. We decompose the matrix Rij of Ricci tensor coordinates with respect to an orthonormal frame field Ei into a sum 1 Rij + 2 Rij + 3 Rij + 4 Rij such that, for any Ei′ = U i i′Ei with...
متن کاملA Remark on Locally Compact Abelian Groups
I t has recently been shown by Halmos [l ] that there exists a compact topological group which is algebraically isomorphic to the additive group of the real line, an example being given by the character group of the discrete additive group of the rationals. Exploiting his argument a bit further it is easy to see that the most general such example is the direct sum of N replicas of the one alrea...
متن کاملA Remark on Rasmussen’s Invariant of Knots
We show that Rasmussen’s invariant of knots, which is derived from Lee’s variant of Khovanov homology, is equal to an analogous invariant derived from certain other filtered link homologies.
متن کاملA Remark on Cavitational Flow.
pp. 76-83. Cf. also R. Brauer, Bull. Am. Math. Soc., 51, 749-755 (1945). For calling our attention to the first reference, we are indebted to Dr. Ernst Snapper; for the third, to Dr. H. N. Shapiro. 4 Cipolla, Periodico. di Mat., 22, 36-41 (1907). For every m in (5a) equal to zero then N reduces to the number of sets of roots of (A), a fortnula known to V. A. Lebesgue, for n = 1, and this was em...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Proceedings of the Japan Academy, Series A, Mathematical Sciences
سال: 1973
ISSN: 0386-2194
DOI: 10.3792/pja/1195519370