The Denjoy–Carleman–Ahlfors theorem is a result in complex analysis concerning analytic functions and their growth properties. It deals specifically with the behavior of holomorphic functions in relation to their logarithmic growth. The theorem states that if \( f(z) \) is a holomorphic function on a domain in the complex plane and \( f(z) \) satisfies a certain growth condition, then the order of the entire function can be characterized more concretely.
Algebraic geometry and analytic geometry are two different branches of mathematics that study geometrical objects, but they approach these objects through different frameworks and methodologies. ### Algebraic Geometry Algebraic geometry is the study of geometric properties and relationships that are defined by polynomial equations. It combines techniques from abstract algebra, particularly commutative algebra, with concepts from geometry.
Condensed mathematics is a framework developed to study mathematical structures using a new paradigm that emphasizes the importance of "condensation" in the field of homotopy theory and algebraic geometry. The concept was introduced by mathematicians, including Peter Scholze and others, primarily as a means to deal with schemes and algebraic varieties in a more efficient way.
Mortimer J. Adler (1902–2001) was an American philosopher, educator, and author known for his work in the fields of philosophy, education, and the promotion of the Great Books. He was a prominent advocate of liberal education and the idea that reading and discussing classic literature can develop critical thinking and understanding. Adler co-founded the Great Books of the Western World series and was involved with the University of Chicago's Great Books Program.
Hero of Alexandria, sometimes referred to as Hero of Alaxandria, was a Greek engineer and inventor who lived during the 1st century AD, likely between about 10 AD and 70 AD. He is often regarded as one of the most important figures in the history of engineering and mechanics. His most notable contributions include a number of inventions and devices that demonstrated the principles of physics and engineering long before the modern era.
The term "Fifth Planet" often refers to a hypothetical planet that could have existed in our solar system between Mars and Jupiter. This concept is primarily related to theories about the early solar system's formation and the dynamics of planetary bodies. In the mid-20th century, astrophysicists proposed that early in the solar system's history, there may have been a fifth terrestrial planet that was disrupted or ejected due to gravitational interactions with the other planets, particularly Jupiter.
Star lore refers to the myths, legends, and stories associated with stars and constellations across different cultures and civilizations throughout history. This body of knowledge often includes interpretations of the stars' movements, their significance in navigation, agriculture, and timing of seasonal events, as well as their roles in various mythologies and religious beliefs. Different cultures have created rich tapestries of stories around the night sky.
Chrysippus was an ancient Greek philosopher who lived from approximately 280 to 206 BCE. He is best known as a prominent figure in the Stoic school of philosophy. Chrysippus played a crucial role in developing Stoic thought, particularly in areas such as logic, ethics, and physics. He is often credited with systematizing and expanding the teachings of earlier Stoics, including Zeno of Citium, the founder of Stoicism.
Heliodorus of Larissa was a prominent figure in ancient Greek philosophy and rhetoric, specifically associated with the school of Sophists. He is best known for his contributions to the philosophical debates of his time and for his role in the intellectual scene of 4th-century BCE Greece, particularly in the city of Larissa in Thessaly.
Gumblar is a type of web-based malware that primarily targets websites running on content management systems (CMS) like WordPress, Joomla, and others. It is named after the Gumblar.com domain, which was used by attackers to distribute the malware. The malware typically spreads through compromised websites, often by exploiting security vulnerabilities, and it can inject malicious scripts into the pages of infected sites.
Antiphon of Athens (c. 480 – c. 411 BC) was a pre-Socratic philosopher and a Sophist, known for his contributions to philosophy and rhetoric, especially in the realm of social and political thought. He is often considered one of the early figures in the development of political theory and moral philosophy.
Joachim Sauer is a German chemist, known primarily for his work in the field of theoretical chemistry and catalysis. He is also notable for being the husband of Angela Merkel, the former Chancellor of Germany. Sauer has had a distinguished academic career, serving as a professor and researcher in various institutions. His contributions to science, particularly in the study of chemical processes and reactions, have been recognized within the scientific community.
The parallactic angle is an important concept in astronomy and astrophysics related to the observation of celestial objects. It is defined as the angle between two lines of sight: one pointing towards an observer from a celestial object and the other pointing from the observer to the point in the sky directly above them, often referred to as the zenith or the meridian.
Robert Brout was a Belgian physicist best known for his work in theoretical physics. He made significant contributions to the field of particle physics, particularly regarding the Higgs mechanism and the unification of fundamental forces. Brout is notably recognized for co-developing the Brout-Englert-Higgs mechanism along with François Englert and Peter Higgs. This mechanism explains how particles acquire mass through their interaction with the Higgs field, a vital aspect of the Standard Model of particle physics.
Russian anti-nuclear activists are individuals and groups in Russia who oppose the use of nuclear power and nuclear weapons, advocating for disarmament, environmental protection, and the cessation of nuclear energy development. Their activities can encompass a variety of initiatives, such as: 1. **Advocacy and Education**: Many activists work to raise public awareness about the potential dangers of nuclear energy and weapons, including accidents, radiation exposure, and long-term environmental impacts.
The Blob refers to a large, anomalous mass of warm water that appeared in the Pacific Ocean, primarily near the North America coastline, during the early 2010s. This phenomenon is characterized by an unusually high sea surface temperature that deviates significantly from normal conditions. The Blob first gained attention around 2014, but similar warm water events have been observed at various times.
Context filtering, often used in fields such as information retrieval, data analysis, and machine learning, refers to the process of selecting or prioritizing data based on the specific context in which it is being evaluated or used. This concept can be applied in various scenarios, including: 1. **Information Retrieval**: In search engines or databases, context filtering helps improve the relevance of search results by considering factors like the user's location, search history, preferences, and the specific nature of the query.
American anti-nuclear weapons activists are individuals or groups who advocate against the development, testing, proliferation, and deployment of nuclear weapons. Their activism often stems from concerns about the moral, ethical, environmental, and security implications of nuclear arsenals. The movement gained significant momentum during the Cold War, particularly in response to the arms race between the United States and the Soviet Union.
Callback verification is a security technique used primarily in the context of web applications, APIs, and other online services to ensure the authenticity of users or systems trying to access sensitive information or perform specific actions. This method typically involves a two-step process where the service validates the identity of the user or system by making a separate call to a trusted source or endpoint.
In computer science, a memory-bound function is a function or a computational task where the performance is limited primarily by the speed of memory access rather than the speed of processing units, such as CPU or GPU cores. This concept generally arises in the context of high-performance computing and parallel processing, where understanding and optimizing the bottlenecks of computation is crucial.

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