tractable
91Queueing theory — is the mathematical study of waiting lines (or s ). The theory enables mathematical analysis of several related processes, including arriving at the (back of the) queue, waiting in the queue (essentially a storage process), and being served by… …
92P-complete — In complexity theory, the notion of P complete decision problems is useful in the analysis of both: which problems are difficult to parallelize effectively, and; which problems are difficult to solve in limited space. Formally, a decision problem …
93Ancien Régime — For the history of France in this period, see Early modern France. Kingdom of France Structure …
94Operation Totalize — Part of Operation Overlord A Cromwell tank and jeep pass an abandoned German PaK 43 …
95Horse breaking — Horse breaking, sometimes called starting or gentling, refers to the process used by humans to get horses to let themselves be ridden or harnessed. Before such a learning process is accomplished, a horse will normally reject attempts to ride it.… …
96Robertson–Seymour theorem — In graph theory, the Robertson–Seymour theorem (also called the graph minor theorem[1]) states that the undirected graphs, partially ordered by the graph minor relationship, form a well quasi ordering.[2] Equivalently, every family of graphs that …
97Vertex cover problem — In computer science, the vertex cover problem or node cover problem is an NP complete problem and was one of Karp s 21 NP complete problems. It is often used in complexity theory to prove NP hardness of more complicated problems. Definition A… …
98Operation Cobra — Part of Operation Overlord (the Battle of Normandy) M4 and M4A3 Sherman tanks and infantrymen of the US 4th Armored Division in Coutances …
99Edge coloring — A 3 edge coloring of the Desargues graph. In graph theory, an edge coloring of a graph is an assignment of “colors” to the edges of the graph so that no two adjacent edges have the same color. For example, the figure to the right shows an edge… …
100Operation Lüttich — Part of the Battle of Normandy …
