Add to ORKGAbstract. We generalize the class if all compact 3-manifolds to a class of new objects called virtual 3-manifolds. Each virtual 3-manifold determines a 3-manifold with singularities of the type Con(RP 2) and may be presented by a triangulation as well as by a special spine. Many properties and invariants of 3-manifolds can be extended to the virtual ones. We restrict ourselves to mentioning Turaev-Viro invariants and two-sheeted branched coverings of virtual 3-manifolds
A 3-manifold M is said to have Property C if the degrees of finite coverings over M are determined b...
Abstract. We associate a 3-manifold to a multiple valued semi-conformal map-ping on the 3-sphere and...
This paper poses some basic questions about instances (hard to find) of a special problem in 3-manif...
The understanding and classication of (compact) 3-dimensional manifolds (without boundary) is with n...
AbstractWe will study π1-injectively immersed surfaces (especially virtual fibers) in closed, hyperb...
The understanding and classification of (compact) 3-dimensional manifolds (without boundary) is with...
Una 3-varietà si dice virtualmente fibrata se ammette un rivestimento finito che è un fibrato con ba...
A 3-manifold is Haken if it contains a topologically essential surface. The Virtual Haken Conjecture...
By using the Chern-Simons interpretation of three-dimensional gravity, it is possible to define a su...
We present several results on the classification of the topological and geometrical structures of cl...
Turaev-VIRO invariants are amongst the most powerful tools to distinguish 3-manifolds. They are inva...
We present several results on the classification of the topological and geometrical structures of cl...
A careful and systematic development of the theory of the topology of 3-manifolds, focusing on the c...
. We describe theoretical backgrounds for a computer program that recognizes all closed orientable 3...
In this article, we introduce a fixed parameter tractable algorithm for computing the Turaev-VIRO in...
A 3-manifold M is said to have Property C if the degrees of finite coverings over M are determined b...
Abstract. We associate a 3-manifold to a multiple valued semi-conformal map-ping on the 3-sphere and...
This paper poses some basic questions about instances (hard to find) of a special problem in 3-manif...
The understanding and classication of (compact) 3-dimensional manifolds (without boundary) is with n...
AbstractWe will study π1-injectively immersed surfaces (especially virtual fibers) in closed, hyperb...
The understanding and classification of (compact) 3-dimensional manifolds (without boundary) is with...
Una 3-varietà si dice virtualmente fibrata se ammette un rivestimento finito che è un fibrato con ba...
A 3-manifold is Haken if it contains a topologically essential surface. The Virtual Haken Conjecture...
By using the Chern-Simons interpretation of three-dimensional gravity, it is possible to define a su...
We present several results on the classification of the topological and geometrical structures of cl...
Turaev-VIRO invariants are amongst the most powerful tools to distinguish 3-manifolds. They are inva...
We present several results on the classification of the topological and geometrical structures of cl...
A careful and systematic development of the theory of the topology of 3-manifolds, focusing on the c...
. We describe theoretical backgrounds for a computer program that recognizes all closed orientable 3...
In this article, we introduce a fixed parameter tractable algorithm for computing the Turaev-VIRO in...
A 3-manifold M is said to have Property C if the degrees of finite coverings over M are determined b...
Abstract. We associate a 3-manifold to a multiple valued semi-conformal map-ping on the 3-sphere and...
This paper poses some basic questions about instances (hard to find) of a special problem in 3-manif...