Kummer configuration refers to a specific arrangement of points and lines (or more generally, subschemes) related to certain algebraic structures, specifically in the context of algebraic geometry and number theory. It is named after the mathematician Ernst Eduard Kummer, who contributed significantly to the field of number theory and modular forms. In a more precise geometric context, the Kummer configuration typically describes a geometric configuration formed from the zeros of a certain polynomial or by considering specific algebraic varieties.
Pappus's configuration is a geometric arrangement related to projective geometry and spatial configurations. Specifically, it refers to two sets of points and three pairs of lines that allow for interesting relationships in their intersections. The configuration is named after the Greek mathematician Pappus of Alexandria, who studied the properties of geometric figures. ### Structure of Pappus's Configuration 1.
Conflict of interest mitigation refers to strategies and actions taken to identify, manage, and reduce conflicts of interest within organizations, processes, or relationships. A conflict of interest occurs when an individual's personal interests, whether financial, relational, or otherwise, may compromise their judgment, integrity, or actions in their professional role. Effective conflict of interest mitigation typically involves several key components: 1. **Disclosure**: Individuals are encouraged or required to disclose any potential conflicts of interest to relevant parties.
In thermodynamics, a critical point refers to the specific temperature and pressure at which the properties of a substance's liquid and vapor phases become indistinguishable. At this point, the distinction between the liquid and gas phases vanishes, resulting in a single phase known as a supercritical fluid. The key characteristics of the critical point are: 1. **Critical Temperature (Tc)**: This is the maximum temperature at which a substance can exist as a liquid.
The Doctrine of Bias in Singapore law refers to the legal principle that ensures fairness and impartiality in the decision-making processes of public officials, tribunals, and courts. It is rooted in the necessity for administrative and judicial processes to be free from bias, whether actual or perceived. The doctrine has its basis in the principles of natural justice and the right to a fair hearing.
Industry self-regulation refers to a process in which an industry establishes its own standards, guidelines, and practices to govern the behavior of its members. This approach is typically aimed at promoting ethical conduct, ensuring product safety, protecting consumer interests, and maintaining fair competition without direct oversight from government entities. Key characteristics of industry self-regulation include: 1. **Voluntary Compliance**: Members of the industry voluntarily agree to abide by the established regulations or standards.
The Iron Triangle is a term used in U.S. politics to describe the stable, mutually beneficial relationship between three key entities: Congress (specifically congressional committees), bureaucratic agencies, and interest groups. This relationship creates a policy-making dynamic where all three parties help each other achieve their goals, often at the expense of broader public interest. 1. **Congress**: Congressional committees oversee specific policy areas and make decisions on funding and legislation.
Massless free scalar bosons in two dimensions are a fundamental concept in quantum field theory. A scalar boson is a particle characterized by a spin of zero, and the term "massless" indicates that it has no rest mass. "Free" means that the particle does not interact with other particles, allowing us to describe its behavior using simple field equations.
The critical three-state Potts model is a statistical mechanics model used to study phase transitions in systems with discrete configurations. It is an extension of the Ising model, which considers only two states (up and down) for each spin or particle in the system. The three-state Potts model allows for three possible states at each site, which can be thought of as different orientations or configurations.
Fusion rules generally refer to guidelines or principles used in various fields to combine different entities, concepts, or frameworks into a cohesive whole. The term can be applied in several contexts, including: 1. **Physics**: In nuclear fusion, the fusion rules outline how atomic nuclei combine to form heavier nuclei, along with conditions like temperature and pressure required for fusion to occur.
The \( \mathcal{N} = 2 \) superconformal algebra is a mathematical structure that arises in the study of two-dimensional conformal field theories (CFTs) with supersymmetry. Superconformal algebras extend the standard conformal algebra by including additional symmetries related to supersymmetry, which relates bosonic (integer spin) and fermionic (half-integer spin) quantities.
Operator Product Expansion (OPE) is a powerful mathematical tool used in quantum field theory (QFT) to simplify the computation of correlation functions and physical observables. The OPE allows us to express the product of two local operators at nearby points in spacetime as a sum of other operators, multiplied by singular terms that depend on the distance between those two points. ### Key Concepts: 1. **Local Operators**: In quantum field theory, operators are used to represent physical quantities.
In the context of theoretical physics—particularly in string theory—the term "twisted sector" refers to a particular construction related to the compactification of extra dimensions and the nature of string states. In string theory, especially in theories involving compactification (where extra dimensions are rolled up to a small scale), the Hilbert space of string states can be divided into different sectors based on how the strings wrap around the compact dimensions.
Paul Erdős was a prolific Hungarian mathematician known for his work in number theory, combinatorics, and other areas of mathematics. He is also famous for posing numerous conjectures throughout his career, many of which remain unresolved. Here are some notable conjectures attributed to Erdős: 1. **Erdős–Ko–Rado Theorem**: Although this theorem was proven, Erdős contributed to formulating its limitations and extensions regarding intersecting families of sets.
The Orchestra Control Engine (OCE) is a software platform designed to help manage and orchestrate complex workflows, particularly in the context of cloud computing and data management. OCE facilitates the automation of processes, allowing organizations to coordinate various tasks and services efficiently. Here are some key features often associated with orchestration engines like OCE: 1. **Workflow Automation**: OCE enables users to define workflows that automate repetitive tasks across various applications and services.
The Main Conjecture of Iwasawa theory is a central result in the field of algebraic number theory, particularly in the study of the relationship between the arithmetic of modular forms and the theory of \( p \)-adic numbers. In simple terms, the conjecture relates the growth of certain \( p \)-adic \( L \)-functions to the ideal class group of an infinite abelian extension of a number field, particularly in the context of cyclotomic fields.
The Novikov self-consistency principle is a concept in the realm of theoretical physics, particularly in the context of time travel and general relativity. Proposed by the Russian physicist Igor Novikov in the 1980s, the principle addresses the paradoxes that arise when one considers scenarios involving time travel. At its core, the Novikov self-consistency principle asserts that any events that occur as a result of time travel must be self-consistent.
"Space form" can refer to different concepts depending on the context in which it is used. Below are a few interpretations: 1. **Architectural Context**: In architecture and design, "space form" often refers to the relationship between the physical space and the forms (structures and shapes) that occupy it. This can involve the analysis of how different shapes and materials influence the perception and functionality of a space.
The Weak Gravity Conjecture (WGC) is a principle proposed in the context of theoretical physics, particularly in string theory and quantum gravity. It was formulated primarily by peers in the field, including Nathan Seiberg, and is aimed at providing insights into the nature of gravity in scenarios involving compact extra dimensions, such as those found in many string theory models.
In topology, a **continuum** refers to a specific type of topological space that is compact, connected, and locally connected. More formally, a continuum is a non-empty, compact, connected space in which every point is part of a connected subset. Here are key properties of a continuum: 1. **Compactness**: This means that every open cover of the space has a finite subcover.

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