Frank P. Ramsey (1903–1930) was a British mathematician, philosopher, and economist known for his contributions to various fields, including mathematics, logic, and decision theory. Despite his short life, he made significant advancements in several areas: 1. **Mathematics**: Ramsey is best known for his work in combinatorial mathematics. The Ramsey theory, which deals with conditions under which a certain order must appear in structures, is named after him.
John Riordan (1905–1982) was an American mathematician known for his work in combinatorics, generating functions, and number theory. He made significant contributions to the field, particularly in the areas of combinatorial methods and the study of special functions associated with mathematical sequences.
Imre Bárány is a Hungarian mathematician known for his work in combinatorics, particularly in areas related to convex geometry and discrete geometry. He has made significant contributions to various aspects of these fields, often focusing on the interplay between combinatorial structures and geometric properties.
James William Peter Hirschfeld does not appear to be a widely recognized public figure or concept based on the information available up to October 2023. It’s possible that he may be a private individual or a figure in a specific niche that is not broadly known.
Jennifer Morse is a notable mathematician recognized for her work in the areas of dynamical systems and topology. She has made significant contributions to the understanding of complex systems and the mathematical theories underlying them. Morse has also been involved in various academic and educational initiatives, promoting mathematics and supporting the mathematical community.
Lior Pachter is a prominent computational biologist known for his contributions to bioinformatics and systems biology. He is a professor at the California Institute of Technology (Caltech), where he works on problems at the intersection of biology, mathematics, and computer science. His research often focuses on developing algorithms and computational methods for analyzing biological data, such as genomic sequences, gene expression, and evolutionary patterns. Pachter is also known for his work in RNA sequencing analysis and statistical methods in genomics.
Miklós Simonovits is a Hungarian mathematician known for his contributions to various fields, particularly in combinatorics, graph theory, and number theory. He is recognized for his work on extremal combinatorial problems, including results related to the Erdős–Simonovits stability theorem. His research has had a significant influence on the development of combinatorial mathematics, and he has published numerous papers and contributed to many important theories in the field.
A "free lattice" typically refers to a type of lattice in the context of lattice theory, a branch of mathematics that studies ordered sets and their properties. In lattice theory, a lattice is a partially ordered set in which any two elements have a unique supremum (least upper bound, also known as join) and an infimum (greatest lower bound, or meet).
A cutting sequence, particularly in the context of mathematics and combinatorial optimization, refers to a specific arrangement or pattern of elements that allows for the division of a larger set into smaller, manageable subsets. While the term can apply to various fields, it is most commonly associated with graph theory, geometric constructions, and linear programming, where it may refer to processes involving partitioning objects or sequences into distinct parts.
In differential geometry and related fields, a **formally smooth map** generally refers to a type of map that behaves smoothly at a certain level, even if it may not be globally smooth in the traditional sense across its entire domain. The concept is often discussed in the context of algebraic geometry and singularity theory. To provide a clearer understanding: 1. **Smooth Maps**: A smooth map is typically a function between differentiable manifolds that is infinitely differentiable.
Hilbert's Basis Theorem is a fundamental result in algebra, particularly in the theory of rings and ideals. It states that if \( R \) is a Noetherian ring (meaning that every ideal in \( R \) is finitely generated), then any ideal in the polynomial ring \( R[x] \) (the ring of polynomials in one variable \( x \) with coefficients in \( R \)) is also finitely generated.
J-multiplicity is a concept that appears in the context of mathematical logic and model theory, particularly in the study of structures and their properties. It is often associated with the analysis of certain functions or relations over structures, and can be used to investigate how complex a particular model or theory is.
The local criterion for flatness is a condition in algebraic geometry and commutative algebra that helps determine when a morphism (or ring homomorphism) is flat. Flatness is an important property that relates to how properties of rings (or varieties) behave under base change.
The Rabinowitsch trick is a technique used in number theory, particularly in the field of algebraic number theory and in the study of polynomial divisibility. It is named after the mathematician Solomon Rabinowitsch. The trick primarily involves the manipulation of polynomials to demonstrate certain divisibility properties. Specifically, it is often applied in the context of proving that a polynomial is divisible by another polynomial under certain conditions.
In the context of commutative algebra and homological algebra, the term "weak dimension" refers to a notion that is related to the properties of modules over a ring. Specifically, the weak dimension of a module is a measure of its complexity in terms of projective resolutions.
The Mandelbrot set is a famous and visually stunning fractal named after the mathematician Benoit Mandelbrot. It is defined in the complex number plane and is created by iterating a simple mathematical formula.
The Deterministic Rendezvous Problem is a classic problem in distributed computing and algorithm design, particularly in the fields of multi-agent systems and robotics. The problem involves two or more agents (or entities) that must meet at a common point (the rendezvous point) in a distributed environment, without the use of randomization. ### Key Characteristics of the Problem: 1. **Determinism**: - The behavior of the agents is predetermined and follows a specific set of rules or algorithms.
Graph cuts is a technique used in computer vision and image processing for segmenting images into different regions or objects. It is based on graph theory and leverages the representation of an image as a weighted graph to achieve efficient segmentation. Here's a breakdown of the concept: ### Graph Representation 1. **Graph Construction**: In graph cuts, each pixel in the image is represented as a node in a graph. Edges connect these nodes, representing the relationship between pixels.
Rod Burstall is a notable Australian television and film director, producer, and writer. He is best known for his work in the Australian film industry, particularly during the 1970s and 1980s. Burstall is credited with directing several influential films, including "The Naked Bunyip" (1970) and "Stork" (1971), which contributed to the revival of the Australian film industry during that time. His works often explore themes relevant to Australian culture and society.
N. David Mermin is a prominent American physicist known for his work in theoretical condensed matter physics, quantum mechanics, and the philosophy of science. He is particularly well-known for his contributions to quantum theory, including the interpretation of quantum mechanics and research on the foundations of quantum physics. Mermin is also recognized for his clear and engaging writing style, which he has used to communicate complex scientific concepts to a broader audience. He has held academic positions at several prestigious institutions, including Cornell University.

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