The Stone–von Neumann theorem is a significant result in the theory of representations of groups, particularly in the context of quantum mechanics and mathematical physics. It pertains to the representation of the canonical commutation relations (CCR) associated with the position and momentum operators in quantum mechanics. **Statement of the Theorem:** The Stone–von Neumann theorem states that, under certain conditions, any two irreducible representations of the canonical commutation relations are unitarily equivalent.
"Theory of Games and Economic Behavior" is a seminal work in the field of game theory, authored by mathematician John von Neumann and economist Oskar Morgenstern, first published in 1944. This book laid the foundation for the formal study of strategic decision-making in situations where individuals or entities (players) interact, each making choices that affect the outcomes for all involved.
A von Neumann algebra is a type of algebra of bounded operators on a Hilbert space that is closed under taking adjoints and contains the identity operator. They are named after the mathematician John von Neumann, who made significant contributions to functional analysis and quantum mechanics.
Roe v. Wade is a landmark decision by the United States Supreme Court, decided on January 22, 1973. The case established a woman's legal right to have an abortion under the constitutional right to privacy. It was brought by "Jane Roe," a pseudonym for Norma McCorvey, who challenged Texas laws that criminalized most abortions.
**United States v. Texas (2021)** is a significant case concerning immigration policy that reached the U.S. Supreme Court. It primarily addressed a challenge brought by the state of Texas and other states against the Biden administration's attempts to rescind the Migrant Protection Protocols (MPP), also known as the "Remain in Mexico" policy.
Judicial activism in India refers to the proactive role of the judiciary in interpreting and upholding the law, particularly when it comes to protecting fundamental rights and ensuring justice. This concept contrasts with judicial restraint, where courts may avoid making decisions that could be seen as overstepping their boundaries or interfering with the functions of the legislature or executive.
Demand Justice is a progressive advocacy organization focused on reforming the U.S. judiciary, particularly the Supreme Court. Founded in 2018, the organization aims to promote a vision of the judicial system that prioritizes fairness, accountability, and representation.
The International Conference of Chief Justices of the World is a gathering of the highest-ranking judicial officers from various countries to discuss issues related to justice, the rule of law, and judicial administration. This conference typically aims to promote dialogue among chief justices on significant challenges faced by legal systems globally. The conference provides a platform for sharing best practices, discussing common challenges in the judiciary, and exploring ways to enhance judicial independence and the effectiveness of legal systems.
The phrase "Justice delayed is justice denied" suggests that if justice is not delivered in a timely manner, it effectively becomes meaningless. This concept highlights the importance of providing prompt legal resolutions and ensuring that individuals have access to a fair and efficient judicial process. Delays in legal proceedings can undermine faith in the justice system, harm victims, and allow injustices to persist.
Algebraic K-theory is a branch of mathematics that studies algebraic structures through the lens of certain generalized "dimensions." It is particularly concerned with the properties of rings and modules, and it provides tools to analyze and classify them. The foundation of algebraic K-theory lies in the concept of projective modules over rings, which can be seen as generalizations of vector spaces over fields.
Additive K-theory is a branch of algebraic K-theory that focuses on understanding certain additive invariants associated with rings and categories. It can be thought of as a refinement of classical K-theory, emphasizing the structured behavior of additive operations. In general, K-theory studies vector bundles, projective modules, and their relations to the topology of the underlying spaces or algebraic structures.
An assembly map is typically a term associated with various fields such as software development, particularly in the context of programming languages and their respective assembly languages, or in geographical and architectural contexts. However, the most common understanding comes from computing. In a computing context, an assembly map is a representation that shows the translation from high-level programming constructs to low-level assembly language instructions. It helps programmers understand how their high-level code corresponds to machine code instructions, which are executed by the computer's processor.
The Birch–Tate conjecture is a significant conjecture in the field of number theory, specifically regarding elliptic curves and their properties. It relates the arithmetic of elliptic curves defined over rational numbers to the behavior of certain L-functions associated with those curves.
The Farrell–Jones conjecture is a significant conjecture in the field of algebraic K-theory and geometric topology, particularly in the study of group actions and their associated topological spaces. It primarily concerns the relationship between the K-theory of a group and the K-theory of its classifying space, often expressed in terms of the assembly map.
KK-theory is a branch of algebraic topology that extends K-theory, which is a mathematical framework used to study vector bundles and their properties. Specifically, KK-theory was developed by the mathematician G. W. Lawson and is associated with the study of non-commutative geometry and operator algebras. At its core, KK-theory deals with the classification of certain types of topological spaces and their associated non-commutative spaces.
The Steinberg group, often denoted as \( S_n(R) \), arises in the context of algebraic K-theory and the study of linear algebraic groups, particularly over a commutative ring \( R \). More specifically, the term is typically associated with the special linear group and its associated K-theory.
The Steinberg symbol is a mathematical object used in the study of algebraic groups and representation theory. It is particularly associated with the representation of the group of p-adic points of a reductive group over a local field. The Steinberg symbol is generally denoted as \( \{x, y\} \) for elements \( x \) and \( y \) in a group, and it captures certain aspects of the cohomology of the group.
Topological K-theory is a branch of mathematics that studies vector bundles over topological spaces through the lens of homotopy theory. It arises in both algebraic topology and functional analysis and is a fundamental concept in modern mathematics, bridging several areas, including geometry, representation theory, and mathematical physics. The main idea behind K-theory is to classify vector bundles (or more generally, modules over topological spaces) up to stable isomorphism.
Weibel's conjecture is a statement in algebraic K-theory proposed by Charles Weibel. Specifically, it concerns the K-theory of rings and states that for any commutative ring \( R \) with a unit, the K-theory group \( K_0(R) \) is isomorphic to a certain direct sum involving the Grothendieck group of finitely generated projective modules over \( R \).
Quadrisecant is a term that typically refers to a numerical method used for finding roots of equations. It is a specific type of secant method that operates using a modified approach to accommodate the scenarios where more than two points are available or necessary. In the context of numerical methods, the secant method itself approximates the roots of a function by using two initial guesses and forming a secant line.
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 2. You can publish local OurBigBook lightweight markup files to either OurBigBook.com or as a static website.Figure 3. Visual Studio Code extension installation.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. - 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