Complex convexity is an extension of the concept of convexity to the complex domain. In classical convex analysis, a set \( C \subseteq \mathbb{R}^n \) is called convex if, for any two points \( x, y \in C \), the line segment connecting \( x \) and \( y \) is entirely contained within \( C \).
Crumpling typically refers to the act of crumpling or crumpling up a material, usually paper, by twisting or compressing it, resulting in a wrinkled or folded texture. This action can be a physical manipulation of the material or used metaphorically in various contexts. In a practical sense, crumpling paper might be done to discard it, to create art, or to prepare it for recycling.
In the context of algebraic geometry and the theory of singularities, an **elliptic singularity** refers to a specific type of isolated singularity that appears in complex hypersurfaces. More precisely, it typically arises in the context of singular points of algebraic varieties, particularly in three-dimensional space. Elliptic singularities are characterized by their local behavior resembling that of an elliptic curve.
An epispiral, also known as an "evolute of a spiral," is a type of spiral that can be defined mathematically. In general terms, it refers to a spiral that evolves over time based on certain mathematical principles. The notion of an epispiral can be seen in various fields, including physics, engineering, and mathematics, particularly in the study of curves and their properties.
The term "lateral surface" refers to the outer surface of a three-dimensional geometric shape that is not the top or bottom face. It describes the vertical or side surfaces of a solid object. For example: - In a cylinder, the lateral surface is the curved surface that connects the top and bottom circular bases. - In a prism, the lateral surfaces are the rectangular faces that connect the top and bottom polygonal bases.
Nirenberg's conjecture, proposed by Louis Nirenberg, concerns the behavior of solutions to certain nonlinear partial differential equations, particularly those related to elliptic equations. Specifically, the conjecture addresses the existence of solutions to the Dirichlet problem for certain elliptic equations involving the Laplacian operator with nonlinear boundary conditions. One of the key aspects of Nirenberg's conjecture is its relation to geometric properties, especially in the context of conformal geometry.
Polygon soup is a term used in computer graphics and computational geometry to describe a collection of polygonal shapes (typically triangles or other simple polygons) that are treated as a single entity without any specific structure or organization. This term often refers to data sets where polygons are not properly organized into a coherent mesh or topology, which can lead to problems in rendering, processing, or analyzing the geometric data.
It seems like there might be a bit of confusion in your question, as "Michael J. Walter" could refer to a specific individual, possibly someone who may be notable in a particular field, but as of my last training cut-off in October 2023, I don't have specific information on an individual by that name. If Michael J.
A prismatic surface is a geometric surface generated by translating a shape along a certain path or in a certain direction. This concept is particularly used in geometry and computer graphics. The most common application of prismatic surfaces occurs when dealing with polylines or curves, where the surface extends along a linear path defined by the original shape.
In mathematics, particularly in the field of algebraic geometry and topology, the term "projective cone" can refer to a construction involving projective spaces and cones in vector spaces.
A simplicial manifold is a type of manifold that is constructed using the concepts of simplicial complexes. In topology, a simplicial complex is a set formed by joining points (vertices) into triangles (2-simplices), which are then joined into higher-dimensional simplices. A simplicial manifold has several key properties: 1. **Locally Euclidean**: Like all manifolds, a simplicial manifold is locally homeomorphic to Euclidean space.
A spherical segment is a three-dimensional shape that is formed by slicing a sphere with two parallel planes. The portion of the sphere that lies between these two planes is referred to as a spherical segment. In more specific terms, a spherical segment has the following characteristics: 1. **Base and Height**: The spherical segment can be defined by its height (the distance between the two parallel planes) and the radius of the sphere from which it is derived.
Dimitar Ouzounov is an accomplished scientist known for his work in the fields of electrical engineering and applied physics, particularly in relation to remote sensing, geophysical applications, and climate change research. His research often focuses on using advanced technology to study Earth's atmosphere and surface, including the development of satellite sensors and analysis methods for environmental monitoring.
"Conmemorativo: A Tribute to Gram Parsons" is a tribute album honoring the influential musician Gram Parsons, who is known for his significant contributions to the country rock genre. Released in 1999, the album features various artists who reinterpret Parsons' songs, showcasing his impact on music. The compilation brings together a diverse range of musicians, paying homage to Parsons' legacy and celebrating his work.
"Cool Summer Reggae" refers to a genre or style of music that combines elements of reggae with themes or vibes suited to a relaxed, sunny, and refreshing summer atmosphere. It typically features the characteristic rhythms of reggae, such as the offbeat guitar strumming, laid-back bass lines, and smooth melodies. This type of music often emphasizes themes of relaxation, love, and enjoyment of life, making it ideal for summer gatherings, beach parties, or simply chilling outdoors.
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!
Intro to OurBigBook
. Source. We have two killer features:
- 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-calculusArticles 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/derivativeVideo 2. OurBigBook Web topics demo. Source. - 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.
- to OurBigBook.com to get awesome multi-user features like topics and likes
- as HTML files to a static website, which you can host yourself for free on many external providers like GitHub Pages, and remain in full control
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. - Infinitely deep tables of contents:
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





