The Basel problem is a famous problem in the field of mathematics, specifically in the study of series. It asks for the exact sum of the reciprocals of the squares of the natural numbers. Formally, it is expressed as: \[ \sum_{n=1}^{\infty} \frac{1}{n^2} \] The solution to the Basel problem was famously found by the Swiss mathematician Leonhard Euler in 1734.
The Dedekind zeta function is an important invariant in algebraic number theory associated with a number field.
The Riemann Hypothesis is one of the most famous and longstanding unsolved problems in mathematics, particularly in the field of number theory.
Wolfgang Arlt is a German academic known for his contributions in the fields of thermodynamics and chemical engineering. He has published numerous research papers and has been involved in various educational and industrial projects. His work often focuses on the development of separation processes and the study of phase equilibria.
Convection is a mode of heat transfer that occurs in fluids (liquids and gases) and is characterized by the movement of molecules within the fluid. In convection, warmer areas of a fluid become less dense and rise, while cooler areas become denser and sink. This movement creates a continuous circulation pattern that helps redistribute heat throughout the fluid.
UNIFAC (Universal Functional Activity Coefficient) is a group contribution method used to predict activity coefficients in non-ideal mixtures, particularly in liquid-liquid systems. It is particularly useful in the field of chemical engineering and thermodynamics for modeling phase behavior, such as vapor-liquid and liquid-liquid equilibria. The UNIFAC model is based on the idea that the behavior of a solution can be estimated by considering the contributions from different functional groups present in the molecules.
SMP/E, which stands for System Modification Program/Extended, is a tool used primarily in IBM mainframe environments for managing software products and their updates. It plays a crucial role in the installation, maintenance, and management of software on IBM z/OS systems. Here are some key functions and features of SMP/E: 1. **Software Installation and Maintenance**: SMP/E allows users to install new software, apply fixes (maintenance), and manage updates efficiently.
The explicit formulas for L-functions typically relate to the values of Dirichlet series associated with characters or other arithmetic objects, and they often connect them to prime numbers through various summation techniques. While there is a variety of specific L-functions, one of the most well-known types of L-functions is associated with Dirichlet characters in number theory.
Hadjicostas's formula is a mathematical formula used in the field of number theory, specifically in relation to the sum of binomial coefficients. It provides a method for calculating the sum of the squares of binomial coefficients.
The Ramanujan tau function, denoted as \(\tau(n)\), is a function in number theory that arises in the study of modular forms. It is defined for positive integers \(n\) and is deeply connected to the theory of partitions and modular forms. ### Definition The tau function is defined via the coefficients of the q-expansion of the modular discriminant \(\Delta(z)\), which is a specific modular form of weight 12.
The Riemann zeta function, denoted as \(\zeta(s)\), is a complex function defined for complex numbers \(s = \sigma + it\), where \(\sigma\) and \(t\) are real numbers.
Subgroup growth refers to the phenomenon in group theory, a branch of mathematics that studies algebraic structures known as groups. Specifically, subgroup growth often involves analyzing how the number of subgroups of various finite indices grows within a given group.
The Weil conjectures are a set of important conjectures in algebraic geometry, formulated by André Weil in the mid-20th century. They primarily concern the relationship between algebraic varieties over finite fields and their number of rational points, as well as properties related to their zeta functions. The conjectures are as follows: 1. **Rationality of the Zeta Function**: The zeta function of a smooth projective variety over a finite field can be expressed as a rational function.
As of my last knowledge update in October 2023, "ZetaGrid" does not refer to a widely recognized or established technology, platform, or product in popular domains such as computing, blockchain, or telecommunications. It's possible that it could be a new or niche technology that emerged after my last update or could refer to a specific project, company, or product that hasn't gained broad attention.
A Minimum Degree Spanning Tree (MDST) is a variation of the Minimum Spanning Tree (MST) problem, which is typically concerned with connecting all vertices in a graph with the minimum possible total edge weight. In the context of an MDST, the objective shifts slightly. In an MDST, the goal is to find a spanning tree that not only minimizes the total edge weight but also limits the maximum degree of any vertex in the tree.
The Strong Perfect Graph Theorem, proved by Maria Chudnovsky, Neil Robertson, Paul Seymour, and Robin Thomas in 2006, establishes an important characterization of perfect graphs. The theorem states that a graph is perfect if and only if it contains no induced subgraph that is an odd cycle of length at least 5 or the complement of such a cycle (i.e., a complete graph minus an odd cycle).
A central massive object typically refers to a large celestial body, usually a star, black hole, or a supermassive black hole, that is located at the center of a galaxy or a star cluster. In astrophysics, the term is often used in the context of galaxy dynamics and structure.
The term "World" can refer to several concepts depending on the context: 1. **Planet Earth**: At its most basic, "world" often refers to the Earth, the third planet from the Sun, which is home to all known life. 2. **Human Experience**: The "world" can also refer to the collective experience of humanity, encompassing cultures, societies, and human interactions.
Heat transfer is a physical process whereby thermal energy moves from one substance or object to another due to a temperature difference between them. This transfer can occur through three primary mechanisms: 1. **Conduction**: This is the transfer of heat through a material without any movement of the material itself. It occurs when two objects at different temperatures come into contact with each other. The heat moves from the hot region to the cold region through molecular collisions.
Laminar-turbulent transition refers to the process by which the flow of a fluid changes from a smooth, orderly state (laminar flow) to a chaotic, irregular state (turbulent flow). This transition is a key phenomenon in fluid dynamics and has significant implications in various fields, including aerodynamics, engineering, meteorology, and environmental science. ### Key Concepts: - **Laminar Flow**: In laminar flow, fluid particles move in parallel layers with minimal mixing between them.
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





