Ib Madsen is not a widely recognized name in popular culture, science, or history, so it's possible that you might be referring to a specific individual who is less known or a fictional character, or perhaps a niche topic that is not broadly documented.
John Coleman Moore is a name that might refer to multiple individuals, but without additional context, it's difficult to provide a specific answer.
Jun O'Hara may refer to a few different things, but it is not widely recognized in popular culture or notable contexts as of my last update in October 2023. It could be a person's name or a specific character from a story, game, or show.
Katsuya Eda is a Japanese Roman Catholic priest and theologian. He is known for his work in various areas of theology and has contributed to discussions on topics such as religious education and interfaith dialogue. However, detailed information on his specific achievements or contributions might not be widely available.
Lisa Piccirillo is a mathematician known for her work in the field of topology, specifically in the study of knot theory. She gained significant attention for her research on the Conway knot, where she provided a proof that it is not slice. This was a notable contribution to the field and demonstrated her abilities in addressing complex problems related to knots and their properties. Piccirillo is also recognized for her work in promoting mathematics and encouraging diversity within the field.
Marston Morse refers to a mathematical concept related to Morse theory, which was developed by the American mathematician Marston Morse in the early 20th century. Morse theory is a branch of differential topology that studies the topology of manifolds using smooth real-valued functions defined on them, known as Morse functions. A Morse function is a smooth function where its critical points (points where the gradient is zero) have distinct non-degenerate critical values.
Mary Ellen Rudin (1924–2013) was a prominent American mathematician known for her contributions to topology, particularly in the areas of set-theoretic topology, general topology, and the theory of continuous transformations. She was one of the few women to achieve significant recognition in mathematics during her lifetime and made substantial contributions to the fields of infinite-dimensional topology and dimension theory. Rudin was born in 1924 in Wisconsin and obtained her Ph.D.
Matthias Kreck is a mathematician known for his contributions to areas such as topology and algebraic geometry. He's associated with various mathematical concepts and theories, particularly in the field of geometric topology. His work often involves the use of algebraic methods to understand topological spaces and their properties.
Mikhail Postnikov is not a widely recognized public figure, and information about him may not be readily available. If you are referring to a specific individual, please provide more context or details about who he is or in what context you are asking about him.
Nathan Dunfield is a mathematician known for his work in areas such as topology, geometric topology, and knot theory. He has made contributions that involve the study of 3-manifolds and related algebraic structures. As a researcher, Dunfield has published various papers and is affiliated with academic institutions where he engages in teaching and mentoring students in mathematics.
Peter Teichner is a mathematician known for his work in the fields of topology and mathematical physics, particularly in the study of knot theory and its connections to quantum field theory. He has made significant contributions to the understanding of the relationships between various mathematical structures and their applications.
Walter Neumann could refer to various individuals, but one prominent figure is Walter Neumann, a mathematician known for his contributions to group theory and topology. He has published extensively on various mathematical topics and is known for his work in the field.
William Browder is an American mathematician known for his contributions to topology, particularly in the areas of algebraic topology and the theory of manifolds. He has made significant advances in various mathematical fields, particularly in homotopy theory and differential topology. Browder is also known for his work on the Browder surgery theory, which relates to the classification of manifolds.
Wolfgang Lück is a prominent German mathematician known for his work in various fields of mathematics, particularly in topology and algebraic topology. He has made significant contributions to the understanding of manifold theory, homotopy theory, and K-theory. In addition to his research, Lück is also recognized for his involvement in mathematical education and for authoring textbooks and papers that facilitate the teaching of complex mathematical concepts.
Yuli Rudyak is not a widely recognized name in mainstream culture or academia, as of my last knowledge update in October 2023. However, if this is an emerging individual or a specific entity (like a brand, project, or concept) that has gained prominence after that date, I would not have information on it.
The Eells–Kuiper manifold is a specific type of mathematical object in the field of differential geometry and topology. It is characterized as a compact and connected 4-dimensional manifold that is non-orientable. The construction of the Eells–Kuiper manifold is notable for being one of the first examples of a non-orientable manifold that has a non-zero Euler characteristic.
Gromov's compactness theorem is a fundamental result in the field of geometric topology, particularly in the study of spaces with geometric structures. The theorem provides criteria for the compactness of certain classes of metric spaces, specifically focusing on the convergence properties of sequences of Riemannian manifolds.
Reeb foliation is a concept in differential topology and dynamical systems that arises in the study of contact manifolds. It is named after the mathematician Georges Reeb. In the context of contact geometry, a contact manifold \( (M, \alpha) \) consists of a manifold \( M \) equipped with a contact form \( \alpha \), which is a differential one-form that satisfies a certain non-degeneracy condition.
A surface map is a graphical representation that displays various information about the surface characteristics of a specific area or phenomenon. The term "surface map" can refer to different types of maps depending on the context. Here are a few common interpretations: 1. **Meteorological Surface Map**: In meteorology, a surface map shows weather conditions at a specific time over a geographic area. It typically includes features such as high and low-pressure systems, fronts, temperatures, and precipitation.
In the context of topology, a uniform space is a set equipped with a uniform structure that allows for the generalization of concepts such as uniform continuity and uniform convergence. A **uniformly connected space** specifically refers to a uniform space that satisfies certain path-connectedness conditions.

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