A Markov partition is a specific type of partitioning of a dynamical system that is used in the study of dynamical systems, particularly those that exhibit chaotic behavior. It is closely related to concepts in ergodic theory and symbolic dynamics.
A Bent function is a specific type of Boolean function that has maximum possible distance from all affine functions, making it highly nonlinear. In the context of cryptography and coding theory, Bent functions are particularly valued for their strong security properties and resistance to linear approximations, which makes them suitable for use in cryptographic applications.
Centrosymmetry is a property of a geometric or physical system that indicates symmetry with respect to a central point. In a centrosymmetric structure, for every point in the structure, there is an identical point located at an equal distance in the opposite direction from a central origin.
Gauge symmetry is a crucial concept in both mathematics and physics, particularly in the context of gauge theories in physics such as electromagnetism and the Standard Model of particle physics. In mathematics, gauge symmetry refers to certain types of symmetries of fields and the associated mathematical structures. ### Key Components of Gauge Symmetry: 1. **Fields and Potentials**: In gauge theories, physical quantities like electromagnetic or gravitational fields can be represented by fields (functions over space and time).
Lie point symmetry is a concept from the field of differential equations and mathematical physics, named after the mathematician Sophus Lie. It specifically refers to symmetries of differential equations that can be expressed in terms of point transformations of the independent and dependent variables. In simpler terms, if a differential equation remains invariant under a transformation that is generated by a continuous group of transformations, then it possesses a Lie point symmetry.
The symmetry of diatomic molecules refers to the spatial arrangement of the atoms and the properties of their molecular orbitals, particularly in relation to the molecule's geometry and the behavior of its electrons. Understanding symmetry in diatomic molecules is crucial for predicting molecular behavior, interpreting spectra, and understanding bonding characteristics.
Family symmetries refer to a concept in theoretical physics, particularly in the context of particle physics and the Standard Model. They involve the idea that certain symmetries can exist among different families or generations of particles. In the Standard Model, matter particles are classified into three generations, each containing particles such as quarks and leptons. Family symmetry suggests that these generations could be connected through some symmetry that goes beyond the conventional gauge symmetries that govern particle interactions.
The International Society for the Interdisciplinary Study of Symmetry (ISIS) is an organization dedicated to the study and promotion of symmetry in various fields, including mathematics, science, art, and philosophy. Founded to foster interdisciplinary research, the society encourages collaboration among scholars and practitioners from diverse backgrounds who share an interest in the concept of symmetry. ISIS organizes conferences, workshops, and seminars, providing a platform for members to share their research, ideas, and artworks related to symmetry.
Jay Hambidge (1867–1924) was an American architect and theorist known for his work in the field of visual design, particularly in relation to the use of mathematical proportions in art and architecture. He is best known for developing the concept of "Dynamic Symmetry," which is a method of composition based on geometric principles, particularly the use of the rectangle and its subdivisions.
Symmetry breaking is a concept found in various fields of science, particularly in physics, mathematics, and biology. At its core, it refers to a situation where a system that is originally symmetric undergoes a change that results in the loss of that symmetry. ### In Physics: 1. **Phase Transitions**: One of the most common examples of symmetry breaking occurs in phase transitions, such as when water freezes into ice.
A one-dimensional symmetry group refers to a group of symmetries that act on a one-dimensional space, such as a line or an interval. In mathematical terms, this involves transformations that preserve certain properties of the space, specifically geometric or algebraic structures. ### Characteristics of One-Dimensional Symmetry Groups: 1. **Transformations**: The transformations in one-dimensional symmetry groups typically include translations, reflections, and rotations (though rotations in one dimension behave similarly to a reflection).
A **P-compact group** (or **p-compact group**) is a type of topological group that plays a significant role in algebraic topology and group theory. These groups generalize the notion of compact groups, which are topological groups that are compact as topological spaces, but allow for more general structures.
A regular polytope is a multi-dimensional geometric figure that is highly symmetrical, with identical shapes and arrangements in its structure. In general, a regular polytope can be defined as a convex polytope that is both uniform (its faces are the same type of regular polygon) and vertex-transitive (the structure looks the same from any vertex).
Rotational symmetry is a property of a shape or object that indicates it can be rotated around a central point by a certain angle and still look the same as it did before the rotation. In other words, if you were to rotate the object about its central point, it would match its original configuration at certain intervals of rotation.
A symmetry group is a mathematical concept that describes the symmetries of an object or a system. In more formal terms, a symmetry group is a group composed of the set of all transformations that preserve certain properties of a geometric object, a physical system, or a solution to an equation. These transformations can include rotations, translations, reflections, and other operations.
Microlinguistics is a subfield of linguistics that focuses on the smaller, more detailed aspects of language. It typically examines the internal structures and components of individual languages, such as phonetics, phonology, morphology, syntax, and semantics. Key areas of study within microlinguistics include: 1. **Phonetics and Phonology**: The study of sounds in human speech and the rules governing their organization and use.
"Seasons" typically refers to the four divisions of the year based on the tilt of the Earth's axis and its orbit around the Sun. These divisions—spring, summer, autumn (or fall), and winter—are characterized by changes in weather, daylight, and ecology. 1. **Spring**: Usually associated with warmer temperatures, blooming flowers, and new growth. It's often seen as a time of renewal and rejuvenation.
"Equative" refers to a grammatical or linguistic construction that expresses equality or equivalence between two elements. In various contexts, it can take different forms: 1. **Grammar:** In grammar, equative constructions often involve the use of the verb "to be" or similar verbs to indicate that two subjects are equal in some way. For example, in English, the sentence "A dog is an animal" makes an equative statement by asserting that a dog and an animal are equivalent.
The term "Imperativus Pro Infinitivo" (often abbreviated as IPI) refers to a grammatical construct in Latin where the imperative mood is used in place of an infinitive. This usage typically serves to express commands, requests, or obligations in a way that would usually be conveyed with an infinitive form. In many instances, this construction can occur in indirect speech or in contexts where a more direct command is preferred.
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





