In the context of general relativity, a tensor is a mathematical object that generalizes scalars, vectors, and matrices, serving as a fundamental building block in the formulation of the theory. Tensors are defined in such a way that they can be manipulated independently of the specific coordinate system used, making them essential for expressing physical laws in a way that is invariant under coordinate transformations.
Alojz Kodre is not widely recognized in popular culture, historical records, or significant contemporary events up to my last knowledge update in October 2023. It is possible that Alojz Kodre is a less well-known individual, such as a local figure, artist, or someone specific to a certain field.
Antonio Giorgilli is a figure known in the context of mathematics and mathematical physics. He has made contributions to the field of dynamical systems and has played a notable role in various academic publications.
Bruno Nachtergaele is an accomplished mathematician known for his work in the fields of mathematical physics, particularly in the areas of quantum mechanics and statistical mechanics. He has made significant contributions to the mathematical foundations of these fields and is recognized for his research in operator algebras and quantum information theory. His research often involves the use of concepts from functional analysis, and he has published various papers and articles that explore the mathematical structures underlying physical theories.
As of my last update in October 2023, Dario Graffi is not a widely recognized public figure or concept in mainstream media, literature, or academia. It’s possible that this name could refer to a person in a specific context (such as a local figure, artist, or professional) or might have emerged more recently.
As of my last knowledge update in October 2023, there doesn't seem to be any widely recognized person, place, or term known as "Franz Harress." It's possible that you might be referring to a less well-known individual, or there may have been developments after 2023.
James Gray, often referred to in mathematical contexts, is recognized for his contributions to various areas of mathematics, particularly in topology and algebraic geometry.
Jeffrey Rauch does not appear to be a widely recognized public figure or concept as of my last knowledge update in October 2023. There may be individual persons with that name in various fields, but without specific context, it's challenging to provide relevant information.
José Enrique Moyal was a prominent figure in the field of mathematics and mathematical physics, particularly known for his contributions to the theory of distributions and the mathematical foundations of quantum mechanics. He is recognized for Moyal's theorem and the Moyal bracket, which are integral parts of the phase space formulation of quantum mechanics. Moyal's work has influenced both mathematics and physics, particularly in areas related to statistical mechanics and quantum field theory.
As of my last knowledge update in October 2023, there doesn’t appear to be any widely recognized individual or concept specifically known as "Konrad Jörgens." It's possible that this name refers to a private individual or a lesser-known figure who may not have extensive coverage in public databases or literature.
Leonid Pastur is a prominent Russian mathematician known for his contributions to the fields of probability theory, mathematical statistics, and statistical physics. He is recognized for his work on random matrices and their applications in various scientific disciplines, including theoretical physics and information theory. Pastur's research has had a significant impact on understanding complex systems and stochastic processes.
Pavel Winternitz is a name that may refer to a particular individual, but there is no widely recognized figure by that name in popular culture, politics, or other well-known domains as of my last knowledge update in October 2023.
Tadashi Tokieda is a mathematician known for his work in the field of geometry and mathematics education. He is recognized for his engaging and interactive approaches to teaching mathematics, often using visual and experiential methods to illustrate complex mathematical concepts. Tokieda has a strong focus on the beauty and creativity inherent in mathematics, and he has contributed to making the subject more accessible and appealing to a wider audience. He is also known for his performances and presentations that demonstrate mathematical ideas in entertaining ways.
Tomaž Prosen is a Slovenian academic and researcher in the field of mathematics, specifically known for his work in areas such as topology, functional analysis, and mathematical logic. His contributions to the field include various publications and research in mathematical theory.
Vasily Vladimirov is a name that could refer to a specific individual in various contexts, but without additional context, it's challenging to identify who or what you are referring to. There may be people with that name in different fields such as academia, the arts, or sports.
Yang-Hui He is a prominent mathematician known for his contributions to various fields, including mathematical physics, number theory, and algebraic geometry. He has worked on topics such as the theory of string dualities, especially in the context of mathematical physics and topological string theory. He is also known for his role in outreach and education in mathematics. In addition to his research, Yang-Hui He has been involved in promoting mathematics through lectures, discussions, and possibly online initiatives or educational platforms.
The null hypothesis is a fundamental concept in statistics and hypothesis testing. It is a statement that asserts there is no effect or no difference in a given situation, and it serves as a default or starting position for statistical analysis. The null hypothesis is usually denoted as \( H_0 \). For example, in a clinical trial, the null hypothesis might state that a new medication has no effect on patients compared to a placebo.
Quantum groups are mathematical structures that arise in the context of quantum algebra and have applications in various fields, including representation theory, theoretical physics, and algebraic geometry. They generalize the notion of groups and play a crucial role in the study of quantum symmetries, particularly in the context of quantum mechanics and quantum field theory. Quantum groups can be thought of as certain deformations of classical Lie groups (or Lie algebras).
The conformal anomaly, also known as the trace anomaly, is a phenomenon that occurs in certain quantum field theories (QFT) when a theory that is classically conformally invariant loses this symmetry at the quantum level. In simpler terms, while a classical theory may display conformal invariance under scale transformations (where distances are scaled by some factor without changing the shape), quantum effects can introduce terms that break this invariance.
Logarithmic conformal field theory (LCFT) is an extension of traditional conformal field theory (CFT) that incorporates logarithmic operators and is particularly useful for describing systems that exhibit certain types of critical behavior, especially in two-dimensional statistical physics and string theory. In standard CFTs, operator product expansions (OPEs) imply that the correlation functions can be expressed in terms of a finite number of conformal blocks, and the dimensions of operators are typically positive and well-defined.

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