منابع مشابه
An Egg Is an Egg Is an Egg
typical historian of biology, either. Her recent books, even though they draw heavily on historical evidence, are not histories in the strict sense. Keller is highly selec-Making Sense of Life: Explaining Biological Development tive in her choice of material and she does not write with Models, Metaphors, and Machines extensively documented monographs on a topic. Rather, her style is essayistic ...
متن کاملThe Robber Locating game
In 2012 Seager introduced a new variant of the Cops and Robbers game, in which a cop searches for a moving robber on a graph using distance probes. The robber on his turn can either remain still or move to an adjacent vertex, while the cop on her turn probes any vertex and learns the robber’s distance from the probed vertex. Carraher, Choi, Delcourt, Erickson and West later showed that for any ...
متن کاملCops, Robber, and Alarms
The two games considered are mixtures of Searching and Cops and Robber. The cops have partial information, provided first via selected vertices of a graph, and then via selected edges. This partial information includes the robber's position, but not the direction in which he is moving. The robber has perfect information. In both cases, we give bounds on the amount of such information required b...
متن کاملThe robber strikes back
We consider the new game of Cops and Attacking Robbers, which is identical to the usual Cops and Robbers game except that if the robber moves to a vertex containing a single cop, then that cop is removed from the game. We study the minimum number of cops needed to capture a robber on a graph G, written cc(G). We give bounds on cc(G) in terms of the cop number of G in the classes of bipartite gr...
متن کاملThe Symplectic Penrose Kite
The purpose of this article is to view the Penrose kite from the perspective of symplectic geometry. Mathematics Subject Classification 2000. Primary: 53D20 Secondary: 52C23 Introduction The kite in a Penrose aperiodic tiling by kite and darts [8, 9] is an example of a simple convex polytope. By the Atiyah, Guillemin–Sternberg convexity theorem [1, 6], convex polytopes that are rational can be ...
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ژورنال
عنوان ژورنال: Emu - Austral Ornithology
سال: 1913
ISSN: 0158-4197,1448-5540
DOI: 10.1071/mu912178