Kaplansky's theorem on quadratic forms is a significant result in the theory of quadratic forms over rings, particularly concerning the values that can be obtained by quadratic forms over certain fields. The theorem specifically states conditions under which a quadratic form can be represented as the sum of squares of linear forms. In particular, one of the most notable facets of Kaplansky's work on quadratic forms relates to the representation of forms over the integers and over various fields.
The Lickorish–Wallace theorem is a result in the field of topology, specifically in the study of 3-manifolds. This theorem provides a criterion for when a connected sum of 3-manifolds can be represented as a connected sum of prime 3-manifolds.
Yang Liming can refer to a few different subjects, depending on the context. One common interpretation is that you're referring to a Chinese actor or a public figure. If you meant a specific individual, please provide more context or details about who they are or what they are known for. Additionally, "Yang Liming" might also refer to a specific term, concept, or cultural reference that is not widely recognized.
The Six Exponentials Theorem is a result in complex analysis and differential equations that deals with the solutions of certain classes of linear differential equations. It establishes conditions under which specific linear combinations of exponential functions can represent the solutions to these equations.
Lusin's separation theorem is an important result in the field of measure theory and topology, particularly in the context of Borel sets and measurable functions. The theorem deals with the separation of measurable sets by continuous functions.
Quantum Information Science is an interdisciplinary field that combines principles of quantum mechanics and information theory to understand, manipulate, and process information in ways that classical systems cannot. It explores how quantum phenomena, such as superposition and entanglement, can be harnessed for various applications in computing, communication, and cryptography.
The Tietze Extension Theorem is a fundamental result in topology, particularly in the context of normal spaces. It states that if \( X \) is a normal topological space and \( A \) is a closed subset of \( X \), then any continuous function \( f: A \to \mathbb{R} \) can be extended to a continuous function \( F: X \to \mathbb{R} \).
The Erdős Lectures is a series of lectures or talks that are typically held in honor of the renowned Hungarian mathematician Paul Erdős, who made significant contributions to various fields of mathematics, including number theory, combinatorics, and graph theory. These lectures aim to promote the study of mathematics and to honor Erdős's legacy, fostering collaboration and communication among mathematicians. The specific format and organization of the Erdős Lectures can vary, but they are often associated with universities or mathematical societies.
Ignatov's theorem refers to a result in the field of functional analysis, particularly concerning the properties of bounded linear operators on Banach spaces. Specifically, it deals with the existence of certain types of fixed points or invariant elements under the action of a non-expansive operator.
Formal languages are sets of strings or sequences of symbols that are constructed according to specific syntactical rules. These languages are used primarily in fields such as computer science, linguistics, mathematics, and logic to rigorously define and manipulate languages—both natural and artificial. ### Key Concepts: 1. **Alphabet**: A finite set of symbols or characters from which strings are formed. For example, in the binary language, the alphabet consists of the symbols {0, 1}.
ACM SIGACT is the Special Interest Group on Algorithms and Computation Theory, which is part of the Association for Computing Machinery (ACM). It focuses on advancing the field of algorithms, computational theory, and related areas of computer science. SIGACT provides a platform for researchers and practitioners to share their work, discuss new ideas, and collaborate on theoretical aspects of computer science.
A formal language is a set of strings composed of symbols from a defined alphabet that follows specific syntactical rules or grammar. Unlike natural languages, which are used for everyday communication and can be ambiguous and variable, formal languages are precise and unambiguous. They are often used in mathematical logic, computer science, linguistics, and theoretical computer science. Key characteristics of formal languages include: 1. **Alphabet**: The basic set of symbols from which strings are formed.
In the context of formal languages, a "pattern language" is a concept that can refer to a way of describing syntactical structures or rules that are used in the formation of strings within a formal language. While the term does not refer to a standardized concept in formal language theory per se, it is often associated with the following ideas: 1. **Regular Expressions**: Patterns are commonly used with regular expressions, which are sequences of characters that define a search pattern.
The ACM Doctoral Dissertation Award is a prestigious recognition given by the Association for Computing Machinery (ACM) to honor outstanding doctoral dissertations in the field of computer science and information technology. This award aims to highlight the significance and impact of research conducted by doctoral candidates, as well as to promote high-quality work in the computing community.
Bio-inspired computing refers to a subset of computational methods and algorithms that are inspired by biological processes and systems. This approach draws on principles observed in nature, including the behaviors and functionalities of living organisms, to solve complex problems in computer science and engineering. Key aspects of bio-inspired computing include: 1. **Genetic Algorithms**: These algorithms mimic the process of natural selection and evolution. They use mechanisms such as mutation, crossover, and selection to optimize solutions to problems.
Bisimulation is a concept in the field of concurrency theory and formal methods, particularly in the study of transition systems and processes. It is a relationship between state-transition systems that allows us to determine if two systems behave similarly in a formal sense. The idea is to compare two systems based on their ability to mimic each other's behavior, particularly in terms of their possible state transitions.
Granular computing is a computational paradigm that focuses on processing, representing, and analyzing information at varying levels of granularity. This concept is based on the idea that data can be divided into smaller, meaningful units (or "granules") where each granule can represent specific types of knowledge or decision-making processes. The main goal is to manage complexity by allowing computations and problem-solving approaches to be performed at different levels of detail or abstraction.
Categorical logic is a branch of logic that deals with categorical propositions, which are statements that relate to the relationships between classes or categories of objects. In categorical logic, we analyze how different groups (or categories) can be included in or excluded from one another based on the propositions we make. The core elements of categorical logic include: 1. **Categorical Propositions**: These are statements that affirm or deny a relationship between two categories or classes.
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





