23 citations · 36 across the 5 of their papers we have counts for
5 papers
Indeterminate Strings, Prefix Arrays & Undirected Graphs
Manolis Christodoulakis, P. J. Ryan, W. F. Smyth +1
An integer array y = y[1..n] is said to be feasible if and only if y[1] = n and, for every i \in 2..n, i \le i+y[i] \le n+1. A string is said to be indeterminate if and only if at…
Hypersurfaces in and with two distinct principal curvatures
Thomas A. Ivey, Patrick J. Ryan
It is known that hypersurfaces in or for which the number of distinct principal curvatures satisfied must belong to a standard list of Hopf hypersurface…
The *-Ricci tensor for hypersurfaces in CP^n and CH^n
Thomas A. Ivey, Patrick J. Ryan
We update and refine the work of T. Hamada concerning *-Einstein hypersurfaces in complex space forms CP^n and CH^n. We also address existence questions using the methods of moving…
Hopf Hypersurfaces of Small Hopf Principal Curvature in CH^2
Thomas A. Ivey, Patrick J. Ryan
Using the methods of moving frames and exterior differential systems, we show that there exist Hopf hypersurfaces in complex hyperbolic space CH^2 with any specified value of the H…
The structure Jacobi operator for hypersurfaces in CP^2 and CH^2
Thomas A. Ivey, Patrick J. Ryan
Using the methods of moving frames, we study real hypersurfaces in complex projective space CP^2 and complex hyperbolic space CH^2 whose structure Jacobi operator has various speci…