Associate family 1970-01-01
The term "associate family" can refer to different concepts depending on the context in which it's used. Here are a couple of potential meanings: 1. **Sociological Context**: In sociology, an "associate family" might refer to a family structure that includes members who are related by more than just traditional kinship ties. This could include close friends or non-relatives who live together and support each other, demonstrating familial characteristics despite not being biologically related.
Associated bundle 1970-01-01
An associated bundle is a construction from differential geometry and algebraic topology that pertains to the study of fiber bundles. In the context of a fiber bundle, the associated bundle is a way of "associating" a new fiber bundle with a given principal bundle and a representation of its structure group.
Atiyah conjecture 1970-01-01
The Atiyah Conjecture is a notable hypothesis in the fields of mathematics, specifically in algebraic topology and the theory of operator algebras. It was proposed by the British mathematician Michael Atiyah and concerns the relationship between topological invariants and K-theory. The conjecture primarily asserts that for a certain class of compact manifolds, the analytical and topological aspects of these manifolds are intimately related.
Atiyah–Hitchin–Singer theorem 1970-01-01
The Atiyah–Hitchin–Singer theorem is a result in the field of differential geometry and mathematical physics, particularly in the study of the geometry of four-manifolds. Specifically, it relates to the topology and geometry of Riemannian manifolds and their connections to gauge theory.
Banach bundle 1970-01-01
A **Banach bundle** is a mathematical structure that generalizes the concept of a vector bundle where the fibers are not merely vector spaces but complete normed spaces, specifically Banach spaces. To understand the definition and properties of a Banach bundle, let’s break it down: 1. **Base Space**: Like any bundle, a Banach bundle has a base space, which is typically a topological space. This is commonly denoted by \( B \).
Banach manifold 1970-01-01
A **Banach manifold** is a type of manifold that is modeled on Banach spaces, which are complete normed vector spaces. In more specific terms, a Banach manifold is a topological space that is locally like a Banach space and equipped with a smooth structure that allows for differentiable calculus.
Bel–Robinson tensor 1970-01-01
The Bel-Robinson tensor is a mathematical object in general relativity that is used to describe aspects of the gravitational field in a way that is similar to how the energy-momentum tensor describes matter and non-gravitational fields. Specifically, the Bel-Robinson tensor is an example of a pseudo-tensor that represents the gravitational energy and momentum in a localized manner.
Bitangent 1970-01-01
The term "bitangent" can have different meanings depending on the context—mathematics, graphics, or computer science. Here are a couple of interpretations: 1. **Mathematics and Geometry**: In the context of curves, a bitangent is a line that is tangent to a curve at two distinct points. This concept often comes up in the study of curves and surfaces, where you may analyze the properties of tangential lines to understand the behavior of the curve.
Björling problem 1970-01-01
The Björling problem is a classical problem in the field of differential geometry, particularly in the study of surfaces. It involves the construction of a surface that is defined by a given curve and a specified normal vector field along that curve. More formally, the Björling problem can be described as follows: 1. **Input Specifications**: - A smooth space curve \(C(t)\) in \(\mathbb{R}^3\) (parametrized by \(t\)).
Bochner's formula 1970-01-01
Bochner's formula is a result in differential geometry that relates to the properties of the Laplace operator on Riemannian manifolds. Specifically, it provides a way to express the Laplacian of a smooth function in terms of the geometry of the manifold.
Bogomolov–Miyaoka–Yau inequality 1970-01-01
The Bogomolov–Miyaoka–Yau inequality is an important result in algebraic geometry and complex geometry, particularly in the study of the geometry of algebraic varieties and the properties of their canonical bundles. The inequality pertains to smooth projective varieties (or algebraic varieties) of certain dimensions and relates the Kodaira dimension and the Ricci curvature.
Bundle gerbe 1970-01-01
A bundle gerbe is a concept in differential geometry and algebraic topology that generalizes the notion of a line bundle or a vector bundle. More specifically, a bundle gerbe can be understood as a higher-dimensional analog of a fiber bundle, particularly in the context of differential geometry, algebraic geometry, and non-commutative geometry.
Bundle metric 1970-01-01
The term "bundle metric" can refer to different concepts depending on the context in which it is used, but it is often associated with measuring the performance or effectiveness of a group of items or activities that are considered together as a "bundle." Here are a couple of contexts in which "bundle metric" might be relevant: 1. **E-commerce & Marketing**: In the context of e-commerce, "bundle metrics" may refer to the performance of product bundles that are sold together.
Bäcklund transform 1970-01-01
The Bäcklund transform is a method used in the field of differential equations, particularly in the theory of integrable systems. It is named after Swedish mathematician Lars Bäcklund, who introduced it in the context of generating new solutions from known ones for certain types of partial differential equations (PDEs). The Bäcklund transform has several important features: 1. **Generation of Solutions**: It allows for the construction of new solutions from existing ones.
Calculus of moving surfaces 1970-01-01
The Calculus of Moving Surfaces (CMS) is a mathematical framework that deals with the analysis of moving or deforming surfaces, particularly in the context of fluid dynamics, material science, and geometric modeling. It provides tools to study the behavior of surfaces that change over time, allowing for the examination of various physical phenomena such as flow dynamics, diffusion processes, and material deformation.
Calibrated geometry 1970-01-01
Calibrated geometry is a concept in differential geometry that deals with certain types of geometric structures, specifically those that can be associated with calibration forms. A calibration is a differential form that can be used to define a notion of volume in a geometric setting, helping to identify and characterize minimal submanifolds.
Cartan's equivalence method 1970-01-01
Cartan's equivalence method is a powerful mathematical framework developed by the French mathematician Henri Cartan in the early 20th century. It is primarily used in the field of differential geometry and the theory of differential equations, particularly for understanding the equivalence of geometric structures and their associated systems of differential equations.
Cartan connection 1970-01-01
A Cartan connection is a mathematical structure that generalizes the concept of a connection on a manifold, particularly in the context of differential geometry and the study of geometric structures. It is named after the French mathematician Élie Cartan. In more technical terms, a Cartan connection can be understood as a way to define parallel transport and curvature in a setting where traditional notions of a connection (like those found in Riemannian geometry) may not apply straightforwardly.
Catalan's minimal surface 1970-01-01
Catalan's minimal surface is a notable example of a minimal surface, which is a surface that locally minimizes area for a given boundary. It is named after the French mathematician Eugène Charles Catalan. This surface can be described mathematically and has interesting geometric properties.
Caustic (mathematics) 1970-01-01