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2. Tree of primitive Pythagorean triples - Wikipedia

   en.wikipedia.org/wiki/Tree_of_primitive...

   [6]: p.7 For example, parent (3, 4, 5) has excircle radii equal to 2, 3 and 6. These are precisely the inradii of the three children (5, 12, 13), (15, 8, 17) and (21, 20, 29) respectively. If either of A or C is applied repeatedly from any Pythagorean triple used as an initial condition, then the dynamics of any of a , b , and c can be ...

3. Pythagoras tree (fractal) - Wikipedia

   en.wikipedia.org/wiki/Pythagoras_tree_(fractal)

   However, some of the squares overlap starting at the order 5 iteration, and the tree actually has a finite area because it fits inside a 6×4 box. [ 2 ] It can be shown easily that the area A of the Pythagoras tree must be in the range 5 < A < 18, which can be narrowed down further with extra effort.

4. Factor graph - Wikipedia

   en.wikipedia.org/wiki/Factor_graph

   with a corresponding factor graph shown on the right. Observe that the factor graph has a cycle. If we merge (,) (,) into a single factor, the resulting factor graph will be a tree. This is an important distinction, as message passing algorithms are usually exact for trees, but only approximate for graphs with cycles.

5. Vine copula - Wikipedia

   en.wikipedia.org/wiki/Vine_copula

   A vine V on n variables is a nested set of connected trees where the edges in the first tree are the nodes of the second tree, the edges of the second tree are the nodes of the third tree, etc. A regular vine or R-vine on n variables is a vine in which two edges in tree j are joined by an edge in tree j + 1 only if these edges share a common ...

6. Tree (graph theory) - Wikipedia

   en.wikipedia.org/wiki/Tree_(graph_theory)

   A rooted tree T that is a subgraph of some graph G is a normal tree if the ends of every T-path in G are comparable in this tree-order (Diestel 2005, p. 15). Rooted trees, often with an additional structure such as an ordering of the neighbors at each vertex, are a key data structure in computer science; see tree data structure.

7. US lawmakers tell Apple, Google to be ready to remove TikTok ...

   www.aol.com/news/us-lawmakers-tell-apple-google...

   WASHINGTON (Reuters) -The chair and top Democrat on a U.S. House of Representatives committee on China told the CEOs of Google-parent Alphabet and Apple on Friday they must be ready to remove ...

8. DC mayor reports 'great meeting' with Trump after past public ...

   www.aol.com/dc-mayor-reports-great-meeting...

   Washington, D.C., Mayor Muriel Bowser said she met with President-elect Donald Trump to discuss their "shared priorities" for the nation's capital.

9. Graph factorization - Wikipedia

   en.wikipedia.org/wiki/Graph_factorization

   A k-factor of a graph is a spanning k-regular subgraph, and a k-factorization partitions the edges of the graph into disjoint k-factors. A graph G is said to be k-factorable if it admits a k-factorization. In particular, a 1-factor is a perfect matching, and a 1-factorization of a k-regular graph is a proper edge coloring with k colors.