13 citations · 23 across the 6 of their papers we have counts for
6 papers
Whitney-type Formula for Non-null-homotopic Curves on Aspherical Surfaces
Masayuki Yamasaki
In an earlier paper, I defined a new winding number of regular closed curves on complete euclidean/hyperbolic surfaces and showed that this winding number, together with the free h…
Winding numbers of regular closed curves on aspherical surfaces
Masayuki Yamasaki
We define winding numbers of regular closed curves on surfaces with a nice euclidean or hyperbolic geometry. We prove that two regular closed curves are regularly homotopic if and…
Local Indices of a Vector Field at an Isolated Zero on the Boundary
Hiroaki Kamae, Masayuki Yamasaki
We define two types of local indices of a vector field at an isolated zero on the boundary, and prove Poincare-Hopf-type index theorems for certain vector fields on a compact smoot…
3-manifolds and 4-dimensional surgery
Masayuki Yamasaki
Let be a connected compact 3-manifold with non-empty boundary. Consider the boundary of . is a 4-dimensional closed manifold and has the same fundamental g…
Stability in controlled L-theory
Erik K. Pedersen, Masayuki Yamasaki
We prove a squeezing/stability theorem for delta-epsilon controlled L-groups when the control map is a fibration on a finite polyhedron. A relation with boundedly-controlled L-grou…
Controlled L-theory
Andrew Ranicki, Masayuki Yamasaki
We develop an epsilon-controlled algebraic L-theory, extending our earlier work on epsilon-controlled algebraic K-theory. The controlled L-theory is very close to being a generaliz…