Zobrazeno 1 - 10
of 31
pro vyhledávání: '"Hladky, Robert K."'
Autor:
DeVivo, Zachary, Hladky, Robert K.
We briefly review known results on upper bounds for the minimal domination number $\gamma_n$ of a hypercube of dimension $n$, then present a new method for constructing dominating sets. Write $n =2^{\hat{n}}-1 +{\check{n}}$ with $0\leq {\check{n}}<2^
Externí odkaz:
http://arxiv.org/abs/2409.14621
Autor:
Hladky, Robert K.
Publikováno v:
Connect to this title online; UW restricted.
Thesis (Ph. D.)--University of Washington, 2004.
Vita. Includes bibliographical references (p. 111-112).
Vita. Includes bibliographical references (p. 111-112).
Externí odkaz:
http://hdl.handle.net/1773/5811
Autor:
Hladky, Robert K.
We explore the consequences of curvature and torsion on the topology of quaternionic contact manifolds with integrable vertical distribution. We prove a general Myers theorem and establish a Cartan-Hadamard result for almost qc-Einstein manifolds.
Externí odkaz:
http://arxiv.org/abs/1402.1775
Autor:
Hladky, Robert K.
For $1\leq q \leq n-2$, we provide explicit examples to demonstrate non-compactness of the Neumann operator for the Kohn Laplacian acting on $L^2$ $(0,q)$-forms on the unit ball in $(2n+1)$-dimensional Heisenberg space.
Comment: 5 pages
Comment: 5 pages
Externí odkaz:
http://arxiv.org/abs/1302.0807
Autor:
Hladky, Robert K.
Under a nondegeneracy condition, we show that an equiregular sub-Riemannian manifold of step size $r$ admits a canonical, $V$-rigid complement defined from the sub-Riemannian data that is preserved the by action of sub-Riemannian isometries. We explo
Externí odkaz:
http://arxiv.org/abs/1212.3479
Autor:
Hladky, Robert K.
We show that the group of smooth isometries of a complemented sub-Riemannian manifold form a Lie group and establish dimension estimates based on the torsion of the canonical connection. We explore the interaction of curvature and the structure of is
Externí odkaz:
http://arxiv.org/abs/1203.1066
Autor:
Hladky, Robert K.
We establish lower bounds for the first non-zero eigenvalue for the natural geometric sub-elliptic Laplacian operator defined on sub-Riemannian manifolds of step 2 that satisfy a positive curvature condition. The methods are very general and can be a
Externí odkaz:
http://arxiv.org/abs/1111.5004
Autor:
Hladky, Robert K.
For a subRiemannian manifold and a given Riemannian extension of the metric, we define a canonical global connection. This connection coincides with both the Levi-Civita connection on Riemannian manifolds and the Tanaka-Webster connection on strictly
Externí odkaz:
http://arxiv.org/abs/0912.3535
Autor:
Hladky, Robert K.
We study the $\bar{\partial}_b$-Neumann problem for domains $\Omega$ contained in a strictly pseudoconvex manifold M^{2n+1} whose boundaries are noncharacteristic and have defining functions depending solely on the real and imaginary parts of a singl
Externí odkaz:
http://arxiv.org/abs/0803.0336
Autor:
Hladky, Robert K., Pauls, Scott D.
We derive a formula for the first variation of horizontal perimeter measure for $C^2$ hypersurfaces of completely general sub-Riemannian manifolds, allowing for the existence of characteristic points. For $C^2$ hypersurfaces in vertically rigid sub-R
Externí odkaz:
http://arxiv.org/abs/math/0702237