Results 71 to 80 of about 5,895,038 (194)

Effective length‐projection bounds for hyperbolic 3‐manifolds diffeomorphic to S×R$S\times \mathbb {R}$

Journal of Topology, Volume 19, Issue 3, September 2026.
Abstract We give a formula with explicit constants relating the subsurface projection dY(ν−,ν+)$d_Y(\nu ^-,\nu ^+)$ of the end invariants ν−,ν+$\nu ^-,\nu ^+$ of a hyperbolic 3‐manifold Q$Q$ diffeomorphic to S×R$S\times \mathbb {R}$ and the length of the geodesic representative in Q$Q$ of the multicurve ∂Y$\partial Y$.
Gabriele Viaggi
wiley   +1 more source

Formal Manifolds: Local Structure of Morphisms, and Formal Submanifolds

Acta Mathematica Sinica, English Series
This is a paper in a series that studies smooth relative Lie algebra homologies and cohomologies based on the theory of formal manifolds and formal Lie groups. In three previous papers, we introduce the notion of formal manifolds and study their basic theory, focusing on function spaces and Poincare's lemma.
Chen, Fulin, Sun, Binyong, Wang, Chuyun
openaire   +2 more sources

Connected subgroups of SO(2,n) acting irreducibly on R^{2,n} [PDF]

, 2011
We classify all connected subgroups of SO(2, n) that act irreducibly on R^{2 ...
Antonio J. Di Scala, Thomas Leistner, Leistner, T., Di Scala, Antonio Jose', Di Scala, A.   +4 more
core   +1 more source

Locally symmetric submanifolds lift to spectral manifolds

, 2012
In this work we prove that every locally symmetric smooth submanifold gives rise to a naturally defined smooth submanifold of the space of symmetric matrices, called spectral manifold, consisting of all matrices whose ordered vector of eigenvalues belongs to the locally symmetric manifold.
Daniilidis, Aris, Malick, Jerome, Sendov, Hristo   +2 more
openaire   +4 more sources

THE RIGIDITY OF MINIMAL SUBMANIFOLDS IN A LOCALLY SYMMETRIC SPACE [PDF]

Bulletin of the Korean Mathematical Society, 2013
Abstract. In the present paper, we discuss the rigidity phenomenon ofclosed minimal submanifolds in a locally symmetric Riemannian manifoldwith pinched sectional curvature. We show that if the sectional curvatureof the submanifold is no less than an explicitly given constant, then eitherthe submanifold is totally geodesic, or the ambient space is a ...
openaire   +1 more source

A General Type of Almost Contact Manifolds [PDF]

Among almost contact manifolds Sasakian manifolds, Kenmotsu manifolds (called also “a certain class of almost contact manifolds”) and cosymplectic manifolds have been studied by many authors.
Catalin Angelo Ioan
core  

Local and global conformal invariants of submanifolds

44 ...
Case, Jeffrey S., Khaitan, Ayush, Lin, Yueh-Ju, Tyrrell, Aaron J., Yuan, Wei   +4 more
openaire   +2 more sources

Kähler submanifolds with parallel pluri-mean curvature [PDF]

, 2004
We investigate the local geometry of a class of Kähler submanifolds M⊂Rn which generalize surfaces of constant mean curvature. The role of the mean curvature vector is played by the (1,1)-part (i.e., the dzidz̄j-components) of the second fundamental form
Burstall, F.E., Tribuzy, R., Eschenburg, Jost-Hinrich, Ferreira, M. J., Eschenburg, J.-H., Ferreira, M.J., Burstall, F. E., Tribuzy, Renato   +7 more
core   +1 more source

On totally real minimal submanifolds in complex projective space [PDF]

, 2005
summary:In this paper, we obtain some pinching theorems for totally real minimal submanifolds in complex projective ...
Chao, Xiaoli, Li, Yaowen
core   +1 more source

Frobenius manifolds: natural submanifolds and induced bi-Hamiltonian structures [PDF]

, 2004
Submanifolds of Frobenius manifolds are studied. In particular, so-called natural submanifolds are defined and, for semi-simple Frobenius manifolds, classified. These carry the structure of a Frobenius algebra on each tangent space, but will, in general,
I.A.B. Strachan, Strachan, I.A.B.
core   +1 more source