The construction method used in its execution (cantilevered erection in a congested urban area), so as the characteristics of the bolted steel structure and the way it is anchored to the concrete core walls, employing post-tensioning systems and stud shear connectors, transform this building into a singular structure in the field of construction.
The final outcome is the design of a singular structure optimized for the NEXT experiment with a probability of failure against any standard earthquake of only 0.125%.
It is a singular amenity offered by a singular structure.
In many cases, however, the singular structure of the solution is known, and its form may be exploited by the spectral element method.
Even without an accepted, strict definition of singularity for relativistic spacetimes, the question can be posed of what it may mean to ascribe "existence" to singular structure under any of the available open possibilities.
Currently, however, there seems to be even less consensus on how (and whether) one should define singular structure in terms of missing points than there is regarding definitions in terms of path incompleteness.
As we have seen, there is no commonly accepted, strict definition of singularity, no physically reasonable definition of missing point, and no necessary connection of singular structure, at least as characterized by the presence of incomplete paths, to the presence of curvature pathology.
None of them integrate the health system into a more manageable, singular structure, and none of them attempt to lower costs through a radical expansion of government bargaining power.
Many discussions of singular structure in relativistic spacetimes, therefore, are premised on the idea that a singularity represents a point or set of points that in some sense or other is "missing" from the spacetime manifold, that spacetime has a "hole" or "tear" in it that we could fill in or patch by the appendage of a boundary to it.
Because of the way the issue of singular structure in relativistic spacetimes ramifies into almost every major open question in relativistic physics today, both physical and philosophical, it provides a peculiarly rich and attractive focus for these sorts of questions.
Nonetheless, it is not entirely clear why we shouldn't be happy with a variety of types of singular structure, and with the permissive attitude that none should be considered the "right" definition of singularities.
