Round 3: Tossup 17

A result about these locations relies on an equation relating the divergence of a congruence and the Raychaudhuri scalar, which is assumed to be non-negative under either the “null energy” or “strong energy” conditions. Supercritical topological defects called cosmic strings may result in the “conical” type of these locations. (10[1])The Eddington–Finkelstein and Kruskal–Szekeres transformations can remove a “false” one of these locations. These locations are characterized by “incomplete” geodesics according to the Penrose–Hawking theorem. So-called “naked” examples (10[1])of these locations are not enclosed by an event horizon (10[1])and are (10[1])theorized (-5[1])to not exist by the cosmic censorship hypothesis. For 10 points, name these locations in space where gravitational effects are infinite, (-5[1])such as in the center of black holes. ■END■ (10[1])

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