In 1984, several computer companies were disestablished, either through bankruptcy, mergers, or being absorbed by larger corporations. Notable examples include: 1. **Apple Computer's Lisa Division** - While not a disestablishment of the entire company, Apple effectively discontinued the Lisa line which was intended as a high-end system. The division that created the Lisa was disbanded.
The Demidov Prize is a prestigious award in the field of science, primarily recognizing outstanding achievements in the fields of natural sciences and engineering. Established in 1884, the prize is named after the Demidov family, notable patrons of science and industry in Russia. The award is presented by the Russian Academy of Sciences and is typically given to researchers and scientists for their significant contributions to advancing knowledge and innovation.
Birch's theorem, also known as the Birch and Swinnerton-Dyer conjecture, is a famous conjecture in number theory related to elliptic curves. It posits a deep relationship between the number of rational points on an elliptic curve and the behavior of an associated L-function.
A **Diophantine quintuple** is a set of five positive integers \( (a, b, c, d, e) \) such that the sum of any two distinct elements in the set is a perfect square.
Diophantus of Alexandria was a Greek mathematician who lived around the 3rd century AD. He is best known for his work in number theory, particularly for his contributions to what are now known as Diophantine equations. His most famous work is the "Arithmetica," where he introduced methods for solving equations that require integer solutions. **Diophantine Equations** are polynomial equations that seek integer solutions.
An **Eisenstein triple** is a concept from number theory that refers to a specific type of three-tuple of integers (a, b, c) that satisfies certain conditions related to Eisenstein integers.
The Erdős–Moser equation is a specific type of functional equation that arises in the context of additive combinatorics and related fields in mathematics. The equation is named after Paul Erdős and Leo Moser, who studied its properties.
Connexive logic is a type of non-classical logic that was developed to address certain philosophical issues concerning implication and conditional reasoning. It primarily focuses on the relationship between antecedents and consequents in conditional statements, aiming to provide a more nuanced understanding of how these relationships operate in reasoning. One key characteristic of connexive logic is its rejection of certain traditional principles of implication that can lead to problematic conclusions.
As of my last knowledge update in October 2023, there is no widely known figure, concept, or term specifically recognized as "Magda Ericson." It's possible that it could refer to a private individual, a fictional character, or a less prominent figure not covered in mainstream information sources.
Alexander Nikuradse (1895–1978) was a notable Georgian-born engineer and scientist primarily recognized for his contributions to the field of fluid mechanics and turbulence. He is best known for his pioneering work in the area of turbulence in pipe flow, particularly through his studies on friction coefficients in turbulent flow. One of his significant contributions is the "Nikuradse pipe roughness" concept, which describes how the roughness of pipe surfaces affects flow resistance.
Burkhard Heim (1925–2001) was a German theoretical physicist known for his work in various fields of physics, including quantum mechanics and gravitation. He is particularly recognized for developing a theoretical framework that sought to unify the fundamental forces of nature. His work led to the proposed "Heim theory," which aimed to extend concepts in physics beyond the standard model of particle physics and general relativity.
A Pickering emulsion is a type of emulsion that is stabilized by solid particles rather than traditional surfactants. In a typical emulsion, like oil and water, surfactants are used to reduce the surface tension between the two immiscible liquids, helping them to mix and stabilize the dispersion.
Description Logic (DL) is a family of formal knowledge representation languages that are primarily used to represent structured knowledge about the world. It is a subset of first-order logic, designed to provide a more expressive yet computationally manageable framework for reasoning about concepts (also known as classes or types) and relationships between them. ### Key Features of Description Logic: 1. **Concepts**: Represented as unary predicates, concepts define classes of objects. For example, "Person" or "Animal".
A Differential Graded Lie Algebra (DGLA) is a mathematical structure that is a generalized form of a Lie algebra. It combines the properties of a Lie algebra with those of a graded vector space and a differential operator.
Picard–Vessiot theory is a framework in differential algebra that generalizes the concepts of Galois theory to the setting of differential equations. It deals with the study of algebraic properties of differential fields—fields equipped with a derivation—and the solutions of linear differential equations.
Dysprosium
Dysprosium is a chemical element with the symbol Dy and atomic number 66. It is classified as a lanthanide, which is a group of elements found in the f-block of the periodic table. Dysprosium is a silvery-metallic rare earth element that is known for its relatively high thermal neutron-capture cross-section, making it valuable in various nuclear applications.
"Works about the Digital Revolution" can refer to a variety of materials, including books, articles, documentaries, and films that examine the impact of digital technology on society, culture, and the economy. The Digital Revolution generally refers to the shift from analog to digital technology that began in the late 20th century and encompasses the rise of personal computers, the internet, smartphones, social media, and other digital innovations.