The authors study the relationship between foliation theory and differential geometry and
analysis on Cauchy-Riemann (CR) manifolds. The main objects of study are transversally …

We study a ramification of a phenomenon discovered by Baird and Eells (in: Looijenga et al
(eds) Geometry Symposium Utrecht 1980. Lecture Notes in Mathematics, Springer, Berlin …

Considering a complex Lagrange space ([24]), in this paper the complex electromagnetic
tensor fields are defined as the sum between the differential of the complex Liouville 1-form …

Let W be a smoothly bounded worm domain in C 2 and let A= Null (L θ) be the set of Levi-flat
points on the boundary∂ W of W. We study the relationship between pseudohermitian …

Pseudoharmonic maps and vector fields on CR manifolds Page 1 doi: 10.2969/jmsj/06210269
Pseudoharmonic maps and vector fields on CR manifolds By Sorin DRAGOMIR and …

We establish inequalities for the eigenvalues of the sub-Laplace operator associated with a
pseudo-Hermitian structure on a strictly pseudoconvex CR manifold. Our inequalities extend …

We study the natural almost CR structure on the total space of a subbundle of hyperquadrics
of the tangent bundle T (M) over a semi-Riemannian manifold (M, g) and show that if the …

We study the properties of Carnot–Carathéodory spaces attached to a strictly pseudoconvex
CR manifold M, in a neighborhood of each point x ∈ M x∈ M, versus the pseudohermitian …

We establish a new lower bound on the first nonzero eigenvalue λ _1 (θ) λ 1 (θ) of the
sublaplacian Δ _b Δ b on a compact strictly pseudoconvex CR manifold MM carrying a …

We study subelliptic biharmonic maps, ie, smooth maps ϕ: M→ N from a compact strictly
pseudoconvex CR manifold M into a Riemannian manifold N which are critical points of the …