27 citations · 114 across the 28 of their papers we have counts for
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Spacetime Singularities vs. Topologies of Zeeman-Göbel Class
Kyriakos Papadopoulos, Basil K. Papadopoulos
In this article we first observe that the Path topology of Hawking, King and MacCarthy is an analogue, in curved spacetimes, of a topology that was suggested by Zeeman as an altern…
Admissible topologies on and
Dimitris Georgiou, Athanasios Megaritis, Kyriakos Papadopoulos
Let and be two given topological spaces, (respectively, ) the set of all open subsets of (respectively, ), and the set of all con…
On Properties of Nests: Some Answers and Questions
Kyriakos Papadopoulos
By considering nests on a given space, we explore order-theoretical and topological properties that are closely related to the structure of a nest. In particular, we see how subbas…
The Order on the Light Cone and its induced Topology
Kyriakos Papadopoulos, Santanu Acharjee, Basil K. Papadopoulos
In this article we first correct a recent misconception about a topology that was suggested by Zeeman as a possible alternative to his Fine topology. This misconception appeared wh…
On Two Topologies that were suggested by Zeeman
Kyriakos Papadopoulos, Basil K. Papadopoulos
The class of Zeeman topologies on spacetimes in the frame of relativity theory is considered to be of powerful intuitive justification, satisfying a sequence of properties with phy…
Helen of Troy, and the birth of Fuzzy Logic
Kyriakos Papadopoulos, P. Tseliou, B. K. Papadopoulos
The poem Helen of the Nobel laureate George Seferis was inspired by the anti war play Helen of Euripides. In his poem, Seferis empathizes with the hero of the tragedy, Teucer, who…
On the Possibility of Singularities on the Ambient Boundary
Kyriakos Papadopoulos
The order horismos induces the Zeeman topology, which is coarser than the Fine Zeeman Topology . The causal curves in a spacetime under are piecewise null. is consid…