Juan Pablo Paz is an accomplished Argentine theoretical physicist, known for his work in the fields of quantum information, quantum optics, and condensed matter physics. He has made significant contributions to the understanding of quantum mechanics and its applications, including research in topics like quantum entanglement and the dynamics of open quantum systems.
As of my last knowledge update in October 2021, there is no widely recognized information regarding a person named Tanja Mehlstäubler. It is possible that she may be a private individual, a professional in a specific field, or someone who gained recognition after my last update.
The term "Bologna bottle" may refer to a couple of different things, but it is most commonly associated with a type of glass bottle that originated in Bologna, Italy. These bottles are often characterized by their elegant shape and craftsmanship. In the context of wine, a Bologna bottle typically has a distinctive design that can be used for various types of beverages, not limited to wine. The region's glassmakers were known for their high-quality glass production, and Bologna bottles can sometimes be collectors' items.
The Tanada effect refers to a phenomenon in psychology where individuals interpret complex incidents or stimuli in a disorganized or fragmented manner, often leading to difficulty in processing and understanding the experience fully. This effect can manifest in various contexts, such as how people recall events or how they perceive information, particularly under stress or emotional overload. The term is relatively specialized and may not be widely recognized like other psychological concepts, so it's possible that references to it may be limited or specific to certain studies or discussions.
A **biconnected component** (also known as a biconnected subgraph) is a concept from graph theory that refers to a maximal subgraph in which any two vertices are connected to each other by two disjoint paths. In simpler terms, a biconnected component is a section of a graph where the removal of any single vertex (and the edges incident to it) will not disconnect the component.
In graph theory, a **bridge** (also known as a **cut-edge**) is an edge in a connected graph whose removal increases the number of connected components of the graph. In simpler terms, a bridge is an edge that, when deleted, disconnects the graph, effectively separating it into two or more disjoint parts. Bridges are important in network design and reliability analysis because they represent critical connections whose failure would fragment the network.
In graph theory, a **component** (or connected component) of a graph refers to a maximal subgraph in which any two vertices are connected to each other by paths, and which is connected to no additional vertices in the supergraph. In simpler terms, it is a subset of the graph in which there is a path between every pair of vertices, and any vertex not included in this subset cannot be reached from any vertex in the subset.
In the context of graph theory and network theory, a "giant component" refers to a connected component of a graph that contains a significant fraction of the total number of vertices in that graph, especially as the number of vertices becomes very large. In large networks, like social networks or biological networks, there can be multiple connected components.
A **vertex separator** (or simply "separator") is a concept in graph theory. It is a set of vertices whose removal disconnects the graph, meaning that it separates the graph into two or more disjoint subgraphs. More formally, given a connected graph \( G \) and a subset of vertices \( S \) in \( G \), \( S \) is called a vertex separator if removing \( S \) from \( G \) results in a graph that is not connected.
A **Hamiltonian path** is a specific type of path in a graph that visits each vertex exactly once. In other words, it is a trail in which every node (or vertex) of the graph is included exactly one time. A **Hamiltonian cycle** (or Hamiltonian circuit) is a special case of a Hamiltonian path where the path starts and ends at the same vertex, thus forming a closed loop that visits every vertex once.
Oracle Spatial and Graph is a feature of Oracle Database that provides advanced capabilities for managing, analyzing, and visualizing spatial and graph data. It is designed to handle a wide range of geospatial data types and graph structures, enabling users to perform complex spatial queries, analyses, and visualizations as well as graph analytics on data related to networks and relationships.
Sparksee, also known as DNA (Dynamic Network Analysis), is a high-performance graph database designed for handling large-scale graph data efficiently. Developed by the company TinkerPop, it is optimized for storing and querying complex relationships between data points, making it suitable for applications such as social networks, recommendation systems, fraud detection, and network analysis.
Bipartite dimension is a concept from graph theory, specifically in the study of dimension in combinatorial structures. In simple terms, a graph is considered bipartite if its vertex set can be divided into two disjoint subsets such that no two graph vertices within the same subset are adjacent. The **bipartite dimension** of a graph is defined as the minimum number of dimensions needed to represent the graph in a way that respects the bipartite structure.
The Cheeger constant, also known as the Cheeger function or Cheeger number, is a concept from graph theory and geometric analysis that provides a measure of how "well-connected" a graph or a manifold is. In the context of a graph, the Cheeger constant is used to characterize the minimum cut that can be made to partition the graph into two disjoint sets.
In graph theory, the concept of "cutwidth" pertains to a way of measuring the layout of a graph. More formally, the cutwidth of a graph is defined with respect to a linear ordering of its vertices. ### Definition Given a graph \( G \) and a linear ordering (or layout) of its vertices, the cutwidth measures the maximum number of edges that cross any vertical "cut" when the vertices are arranged in a row according to the specified order.
The Hyper-Wiener index is a graph invariant used in the study of chemical graph theory, where it is often applied to describe the structural properties of molecules. Specifically, it captures information about the connectivity and topology of a molecular graph. The Hyper-Wiener index \( W^h(G) \) for a graph \( G \) is defined based on the distances between pairs of vertices in the graph.
The Kelmans–Seymour conjecture is a conjecture in graph theory that relates to the structure of certain types of graphs. Specifically, it deals with the behavior of complete graphs and the existence of specific subgraphs within them. Formulated by Paul Kelmans and Neil Seymour, the conjecture states that every 2-edge-connected graph can be represented as a graph obtained from a complete graph by the contraction of edges.
A Partial k-tree is a data structure used primarily in the field of combinatorial optimization and computer science, particularly in topics related to the representation of combinatorial objects or configurations, such as combinations, subsets, or sequences. In general, a k-tree is a tree structure that represents all possible configurations of k elements chosen from a larger set, and it can be used for various applications, including generating combinations or permutations.
In graph theory, a **Blossom** refers to a specific structure that is relevant in the context of matching algorithms, particularly in the matching of general graphs. The Blossom structure is utilized to handle situations where augmenting paths may be of odd length, which can complicate the process of finding maximum matchings. The concept of Blossoms is associated with the **Edmonds' Blossom Algorithm**, developed by Jack Edmonds in the 1960s.
Univac Text Editor is a software tool developed for text editing on Univac computers, which were among the earliest computer systems used for business and scientific applications. Univac, short for Universal Automatic Computer, was one of the first successful commercial computer brands, developed in the 1950s and 1960s. The Univac Text Editor specifically allowed users to create, modify, and manage text documents on these systems.

Pinned article: Introduction to the OurBigBook Project

Welcome to the OurBigBook Project! Our goal is to create the perfect publishing platform for STEM subjects, and get university-level students to write the best free STEM tutorials ever.
Everyone is welcome to create an account and play with the site: ourbigbook.com/go/register. We belive that students themselves can write amazing tutorials, but teachers are welcome too. You can write about anything you want, it doesn't have to be STEM or even educational. Silly test content is very welcome and you won't be penalized in any way. Just keep it legal!
We have two killer features:
  1. topics: topics group articles by different users with the same title, e.g. here is the topic for the "Fundamental Theorem of Calculus" ourbigbook.com/go/topic/fundamental-theorem-of-calculus
    Articles of different users are sorted by upvote within each article page. This feature is a bit like:
    • a Wikipedia where each user can have their own version of each article
    • a Q&A website like Stack Overflow, where multiple people can give their views on a given topic, and the best ones are sorted by upvote. Except you don't need to wait for someone to ask first, and any topic goes, no matter how narrow or broad
    This feature makes it possible for readers to find better explanations of any topic created by other writers. And it allows writers to create an explanation in a place that readers might actually find it.
    Figure 1.
    Screenshot of the "Derivative" topic page
    . View it live at: ourbigbook.com/go/topic/derivative
  2. local editing: you can store all your personal knowledge base content locally in a plaintext markup format that can be edited locally and published either:
    This way you can be sure that even if OurBigBook.com were to go down one day (which we have no plans to do as it is quite cheap to host!), your content will still be perfectly readable as a static site.
    Figure 2.
    You can publish local OurBigBook lightweight markup files to either https://OurBigBook.com or as a static website
    .
    Figure 3.
    Visual Studio Code extension installation
    .
    Figure 4.
    Visual Studio Code extension tree navigation
    .
    Figure 5.
    Web editor
    . You can also edit articles on the Web editor without installing anything locally.
    Video 3.
    Edit locally and publish demo
    . Source. This shows editing OurBigBook Markup and publishing it using the Visual Studio Code extension.
    Video 4.
    OurBigBook Visual Studio Code extension editing and navigation demo
    . Source.
  3. https://raw.githubusercontent.com/ourbigbook/ourbigbook-media/master/feature/x/hilbert-space-arrow.png
  4. Infinitely deep tables of contents:
    Figure 6.
    Dynamic article tree with infinitely deep table of contents
    .
    Descendant pages can also show up as toplevel e.g.: ourbigbook.com/cirosantilli/chordate-subclade
All our software is open source and hosted at: github.com/ourbigbook/ourbigbook
Further documentation can be found at: docs.ourbigbook.com
Feel free to reach our to us for any help or suggestions: docs.ourbigbook.com/#contact