Cap set by Wikipedia Bot 0
A **Cap set** is a specific configuration in the context of combinatorial geometry and number theory, specifically concerning subsets of integers or points in higher-dimensional spaces. The concept is particularly related to the study of sets that avoid certain geometric configurations or progressions.
Corners theorem by Wikipedia Bot 0
Corners theorem, often referred to in the context of graph theory and combinatorial geometry, generally deals with conditions on the arrangement of points or vertices in a specific geometric or combinatorial setting. The theorem states that given a finite set of points in the plane, one can find a subset of these points such that certain geometric or combinatorial properties hold, often involving the vertices (or corners) of a configuration.
The Erdős–Dushnik–Miller theorem is a result in the field of graph theory, specifically in relation to the coloring of graphs. The theorem addresses the concept of coloring infinite graphs, particularly the problem of how many colors are needed to color an infinite graph such that no two adjacent vertices share the same color.
Salt (chemistry) by Ciro Santilli 37 Updated +Created
The Erdős–Hajnal conjecture is a famous conjecture in combinatorial set theory and graph theory, proposed by mathematicians Paul Erdős and András Hajnal in the early 1970s. It addresses the structure of graphs that do not contain certain types of subgraphs, specifically focusing on the clique and independent set sizes.
The Erdős–Szekeres theorem is a significant result in combinatorial geometry and discrete mathematics. It addresses the problem of monotone subsequences in sequences of points in the plane. The theorem states that for any integer \( n \), any sequence of \( n^2 \) distinct points in the plane, no three of which are collinear, contains either: 1. An increasing subsequence of length \( n \), or 2. A decreasing subsequence of length \( n \).
Folkman's theorem by Wikipedia Bot 0
Folkman's theorem is a result in combinatorial mathematics, specifically in the area of Ramsey theory. It was proven by mathematician Frank P. Ramsey and is concerned with the coloring of edges in complete graphs.
The Green–Tao theorem is a significant result in additive combinatorics and number theory, established by mathematicians Ben Green and Terence Tao. It was proven in 2004 and states that the set of prime numbers contains arbitrarily long arithmetic progressions. More formally, the theorem asserts that for any integer \( k \), there exists a sequence of prime numbers that contains an arithmetic progression of length \( k \).
IP set by Wikipedia Bot 0
An **IP Set** is a data structure used primarily in the context of firewalls and network security systems to manage and store sets of IP addresses efficiently. IP sets allow network administrators to: 1. **Group IP Addresses**: Instead of creating individual rules for each IP address, administrators can create a single entry that represents a set of IPs. This is particularly useful for managing rules related to large numbers of IP addresses, such as those belonging to known malicious sources or trusted partners.
Milliken's tree theorem is a result in the field of combinatorial set theory, specifically in the area of Ramsey theory. It deals with properties of certain types of trees, which are hierarchical structures that can be thought of as branching diagrams. The theorem states that for any finite coloring of the nodes of a tree, one can find a subtree of a certain structure that is monochromatic (i.e., all nodes in that subtree have the same color) and satisfies certain conditions.
"The Mathematical Coloring Book" is a book written by the mathematician Alexis P. F. K. Myerson. It is designed to introduce readers to various concepts in mathematics through the engaging medium of coloring. The book features a variety of mathematical problems and concepts, encouraging readers to explore different areas of mathematics while participating in a fun and creative activity.
Stephen Hsu by Wikipedia Bot 0
Stephen Hsu is a physicist and entrepreneur known for his work in theoretical physics, particularly in the fields of high-energy physics and cosmology. He has been involved in academic research and education, holding positions at various universities. Additionally, Hsu has been active in the intersection of science and technology, including work related to artificial intelligence and genetics. Hsu is also known for his interest in topics like intelligence, genetic engineering, and the implications of scientific advancements on society.
Slicing the Truth by Wikipedia Bot 0
"Slicing the Truth" is a term that may refer to the idea of breaking down information, evidence, or arguments into smaller, more manageable parts to analyze and understand them better. This concept is often applied in various fields, such as philosophy, logic, and critical thinking, where the goal is to examine the components of a statement or belief to assess its validity, truthfulness, or implications.
Shai Evra by Wikipedia Bot 0
As of my last update in October 2023, there is no widely recognized concept, product, or individual known as "Shai Evra." It might be a term specific to a niche field, a recent development, or a personal name not widely covered in available sources.
A. K. Dewdney by Wikipedia Bot 0
A. K. Dewdney is a Canadian mathematician, computer scientist, and author, known for his work in the fields of mathematics, computer science, and popular science writing. He has written several books and articles on topics ranging from mathematics and science to the philosophical implications of technology. One of his notable contributions is in the realm of recreational mathematics, where he has explored interesting mathematical puzzles and concepts.
Alexander Bogomolny is a mathematician known primarily for his work in the field of mathematics education and his contributions to the popularization of mathematical concepts through various online resources. He is the creator of the website "Cut-the-Knot," which features a wealth of mathematical problems, puzzles, and explanations designed to engage learners and enthusiasts in mathematics. The site covers a variety of topics, including geometry, number theory, and mathematical games, and is appreciated for its clear explanations and interactive elements.
Base flow in the context of random dynamical systems typically refers to a steady or deterministic flow around which random fluctuations occur. In dynamical systems, particularly in fluid dynamics and related fields, the base flow represents the mean or average flow pattern of a system, while perturbations or disturbances can be introduced to that flow due to random influences, noise, or other time-dependent effects.
Brownian motion refers to the random, erratic movement observed in small particles suspended in a fluid (liquid or gas), a phenomenon that is particularly significant in the study of colloidal dispersions, including sol particles. ### Understanding Brownian Motion: 1. **Historical Context**: The term "Brownian motion" is named after the botanist Robert Brown, who, in 1827, first observed pollen grains moving randomly in water.
A **pullback attractor** is a concept from dynamical systems and chaos theory, referring to a specific type of attractor that describes the long-term behavior of trajectories in a non-autonomous dynamical system. Non-autonomous systems are those where the governing equations change over time, often influenced by an external time-dependent influence.

Pinned article: ourbigbook/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