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  2. Graph embedding - Wikipedia

    en.wikipedia.org/wiki/Graph_embedding

    An embedded graph uniquely defines cyclic orders of edges incident to the same vertex. The set of all these cyclic orders is called a rotation system.Embeddings with the same rotation system are considered to be equivalent and the corresponding equivalence class of embeddings is called combinatorial embedding (as opposed to the term topological embedding, which refers to the previous ...

  3. Connected-component labeling - Wikipedia

    en.wikipedia.org/wiki/Connected-component_labeling

    1. The array from which connected regions are to be extracted is given below (8-connectivity based). We first assign different binary values to elements in the graph. The values "0~1" at the center of each of the elements in the following graph are the elements' values, whereas the "1,2,...,7" values in the next two graphs are the elements' labels.

  4. Combinatorial map - Wikipedia

    en.wikipedia.org/wiki/Combinatorial_map

    A combinatorial map may also be called a combinatorial embedding, a rotation system, an orientable ribbon graph, a fat graph, or a cyclic graph. [1] More generally, an n {\displaystyle n} -dimensional combinatorial map is a combinatorial representation of a graph on an n {\displaystyle n} -dimensional orientable manifold.

  5. Cell-based models - Wikipedia

    en.wikipedia.org/wiki/Cell-based_models

    Cell-based models are mathematical models that represent biological cells as discrete entities. Within the field of computational biology they are often simply called agent-based models [1] of which they are a specific application and they are used for simulating the biomechanics of multicellular structures such as tissues. to study the influence of these behaviors on how tissues are organised ...

  6. Cycle basis - Wikipedia

    en.wikipedia.org/wiki/Cycle_basis

    In graph theory, a branch of mathematics, a cycle basis of an undirected graph is a set of simple cycles that forms a basis of the cycle space of the graph. That is, it is a minimal set of cycles that allows every even-degree subgraph to be expressed as a symmetric difference of basis cycles.

  7. Cell Transmission Model - Wikipedia

    en.wikipedia.org/wiki/Cell_Transmission_Model

    The corridor has two signals located at milepost 1 and 2 starting upstream. The signals have a split of 30 seconds and a cycle length of 60 second. With this information, it is a simple matter of iteration of equations (1) for all the cells and time steps. Figure 3 and Table 1 shows the spatial and temporal distribution of density for the case ...

  8. Cellular model - Wikipedia

    en.wikipedia.org/wiki/Cellular_model

    The eukaryotic cell cycle is very complex and is one of the most studied topics, since its misregulation leads to cancers. It is possibly a good example of a mathematical model as it deals with simple calculus but gives valid results. Two research groups [1] [2] have produced several models of the cell cycle simulating several organisms. They ...

  9. Cellular automaton - Wikipedia

    en.wikipedia.org/wiki/Cellular_automaton

    The state of each cell in a totalistic cellular automaton is represented by a number (usually an integer value drawn from a finite set), and the value of a cell at time t depends only on the sum of the values of the cells in its neighborhood (possibly including the cell itself) at time t − 1.