Kuratowski convergence is a concept in the field of set-valued analysis, which deals with the convergence of sequences of sets. It is named after the Polish mathematician Kazimierz Kuratowski. This type of convergence extends the idea of pointwise convergence from single-valued functions to sequences of sets.
The Laplace functional is a mathematical tool used in the context of stochastic processes, particularly in the field of probability theory and statistical mechanics. It is often utilized to analyze the properties of random processes, especially those that are continuous and have an infinite-dimensional nature, such as point processes and random fields. For a random variable or a stochastic process \(X(t)\), the Laplace functional can be defined in a way that resembles the Laplace transform, but it is typically formulated for measures or point processes.
The Lévy–Prokhorov metric, often referred to as the Prokhorov metric, is a tool used in probability theory and statistics to measure the distance between two probability measures on a metric space. It provides a quantitative way to compare how "close" two probability distributions are. ### Definition: Let \( (E, d) \) be a separable measurable space with a metric \( d \).
Minkowski distance is a generalization of several distance measures used in mathematics and machine learning to quantify the distance between two points in a vector space. It is defined in a way that encompasses different types of distance metrics by varying a parameter \( p \).
Non-positive curvature is a concept in differential geometry and Riemannian geometry that refers to spaces where the curvature is less than or equal to zero everywhere. This property characterizes a wide variety of geometric structures and has significant implications for the topology and geometry of the space.
The concept of a metric outer measure is a way to extend the notion of "size" or "measure" of subsets of a metric space. It builds on the idea of open covers and the associated infimum of sums of the measures of covering sets. Here’s how it works in a structured manner: ### Definition Let \((X, d)\) be a metric space.
An **ultrametric space** is a specific type of metric space that has a stronger condition than a general metric space. In an ultrametric space, the distance function satisfies the following properties: 1. **Non-negativity**: For any points \(x\) and \(y\), the distance \(d(x, y) \geq 0\).
Wijsman convergence is a concept in the field of topology and functional analysis, particularly concerning the convergence of sets and multifunctions. It is associated with the study of the convergence of sequences of sets in a topological space, specifically in the context of the weak convergence of measures and the convergence of families of sets.
"Bunder" can refer to different things depending on the context. Here are a few possible meanings: 1. **Geographical Term**: In some regions, "Bunder" may refer to specific locations or areas, such as neighborhoods or villages. 2. **Bunder (in India)**: In India, "bunder" can refer to a type of fishing or a fishing village.
In mathematics, particularly in the field of category theory and algebra, a **tight span** is a concept used to describe a particular kind of "span" of a set in a metric or ordered structure. The idea of a tight span often arises in the context of generating a certain type of space in a minimal yet appropriate way. ### Definition: A tight span can be defined in more formal settings, such as in metric spaces and in the theory of posets (partially ordered sets).
Polyhedral space is a concept that arises in the context of geometry and topology, particularly in relation to spaces that can be decomposed into polyhedra or simplices. The term itself can refer to various structures and spaces depending on the context in which it is used.
In mathematics, particularly in the context of topology and measure theory, a **porous set** is a type of set that is "thin" or "sparse" in a certain sense. The precise definition of a porous set can vary slightly in different contexts, but the general idea is related to the existence of "gaps" or "holes" in the set.
A product metric is a quantifiable measure used to assess various aspects of a product's performance, quality, usability, or success in the market. These metrics help organizations evaluate how well a product is meeting its goals, customer needs, and business objectives. Product metrics can be classified into several categories, including but not limited to: 1. **Usage Metrics**: These track how often and in what ways users engage with a product.
A **pseudometric space** is a generalization of a metric space. In a metric space, the distance between two points must satisfy certain properties, including the identity of indiscernibles, which states that the distance between two distinct points must be positive. However, a pseudometric space relaxes this requirement. Formally, a pseudometric space is defined as a pair \((X, d)\), where: - \(X\) is a set.
The Reshetnyak gluing theorem is a result in the field of geometric analysis, particularly in the study of manifold structures and differentiable mappings. It provides conditions under which one can construct a manifold from simpler pieces—specifically in the context of conformal or Lipschitz mappings.
In mathematics, particularly in the field of functional analysis and metric spaces, a subset \( S \) of a metric space \( (X, d) \) is said to be **totally bounded** if, for every \( \epsilon > 0 \), there exists a finite cover of \( S \) by open balls of radius \( \epsilon \).
HR metrics are quantifiable measures used by Human Resources (HR) departments to assess various aspects of an organization's human capital and workforce effectiveness. They provide insights into workforce performance, employee engagement, recruitment efficiency, retention rates, and overall organizational health. By analyzing these metrics, HR professionals can make data-driven decisions, identify areas for improvement, and evaluate the impact of HR practices on organizational strategy and performance.
VCX score is not a widely recognized term, and as of my last knowledge update in October 2021, it wasn't associated with a specific, standard definition in finance, technology, or other common fields. However, it is possible that it could refer to a proprietary or specialized metric used in a particular context, such as a business, tech, or analytics domain.
The pound (abbreviated as "lb") is a unit of mass commonly used in the United States and a few other countries that have not adopted the metric system. One pound is defined as exactly 0.45359237 kilograms. In terms of other units, a pound is equivalent to 16 ounces. The pound is part of the Imperial system of measurements and is widely used for various applications, including food, shipping, and personal weight.
As of my last update, "Stremma" could refer to different things. It is most commonly associated with a Greek term that translates to "stream" in English, often referring to a small body of flowing water. Additionally, it might refer to a company, platform, or service depending on the context, but there isn't a widely recognized entity or concept labeled "Stremma" outside of those variations.

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 5. . 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.
  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