Sharp map 1970-01-01
SharpMap is an open-source mapping library written in C#. It is primarily used for creating, displaying, and manipulating geographical data in desktop and web applications. SharpMap provides an easy-to-use API for rendering maps and supports various vector and raster data formats, including shapefiles, GeoJSON, and WMS (Web Map Service).
Siegel upper half-space 1970-01-01
The Siegel upper half-space, typically denoted as \( \mathcal{H}_g \), is a concept from several complex variables and algebraic geometry. It is a generalization of the upper half-plane concept found in one complex variable and is an important object in the study of several complex variables, algebraic curves, and arithmetic geometry.
Spectral shape analysis 1970-01-01
Spectral shape analysis refers to a method used to characterize and interpret the spectral content of signals, sounds, or images based on their shape in the frequency domain. This technique is particularly useful in fields such as audio signal processing, speech analysis, music information retrieval, and various applications in physics and engineering. ### Key Components of Spectral Shape Analysis: 1. **Spectral Representation**: The process often starts with transforming a time-domain signal into the frequency domain using techniques like the Fourier transform.
Sphere 1970-01-01
The term "Sphere" can refer to different concepts depending on the context. Here are some common interpretations: 1. **Geometric Shape**: A sphere is a three-dimensional geometric object that is perfectly round, where all points on its surface are equidistant from its center. It is defined in mathematics and is commonly represented in equations such as \(x^2 + y^2 + z^2 = r^2\), where \(r\) is the radius of the sphere.
Spherical Bernstein's problem 1970-01-01
Spherical Bernstein's problem is a concept in the realm of convex geometry and measure theory, particularly involving the properties of convex bodies and their relation to random points or measures on spheres. The problem is closely associated with the work of mathematician Sergei Bernstein and explores the behavior of certain probability measures on spheres in relation to convex shapes and their geometry. More specifically, it investigates the conditions under which a probability measure on the surface of a sphere can be approximated or represented by measures associated with convex bodies.
Spherical image 1970-01-01
A spherical image is a type of image that captures a 360-degree view of a scene, typically in a panoramic format. These images can be viewed interactively using special software or hardware, allowing the user to explore the scene from different angles, as if they were standing in the middle of it. Spherical images are often created using specialized cameras that have multiple lenses or a single lens with a wide field of view to capture all sides of a scene at once.
Spin connection 1970-01-01
The spin connection is a mathematical construct used in the context of differential geometry and gauge theories, particularly in the study of general relativity and theories involving spinors, such as quantum field theories in curved spacetime. It is essential for describing how spinor fields (which are fields that transform under the spin group and are important in particle physics) behave in curved spacetime.
Spin geometry 1970-01-01
Spin geometry is a branch of mathematics that studies geometric structures and properties related to Spin groups and Spinors. It blends techniques from differential geometry, topology, and representation theory, particularly in the context of manifolds and their symmetry properties. Here are some key concepts related to Spin geometry: 1. **Spin Groups**: The Spin group, denoted Spin(n), is a double cover of the special orthogonal group SO(n), which describes rotations in n-dimensional space.
Spray (mathematics) 1970-01-01
In mathematics, particularly in the context of mathematical analysis and topology, the term "spray" refers to a specific type of vector field on a manifold that is associated with a variation of geodesics. More formally, a spray on a differentiable manifold \( M \) is a smooth section of the bundle \( TM \to M \) that can be thought of as defining a family of curves on \( M \).
Stable normal bundle 1970-01-01
In differential geometry and algebraic geometry, the concept of a **stable normal bundle** primarily arises in the context of vector bundles over a variety or a manifold. A normal bundle is associated with a submanifold embedded in a manifold.
Stable principal bundle 1970-01-01
In the context of differential geometry and algebraic topology, a **stable principal bundle** refers to a specific kind of principal bundle that exhibits certain stability properties, often relating to the notion of stability in families of vector bundles or connections on bundles.
Stiefel manifold 1970-01-01
The Stiefel manifold, denoted as \( V_k(\mathbb{R}^n) \), is a mathematical object that describes the space of orthonormal k-frames in an n-dimensional Euclidean space \(\mathbb{R}^n\). More specifically, it consists of all matrices \( A \in \mathbb{R}^{n \times k} \) whose columns are orthonormal vectors in \(\mathbb{R}^n\).
String group 1970-01-01
The term "string group" can refer to several different concepts depending on the context in which it's used. Here are a few common interpretations: 1. **Music**: In the context of music, a "string group" may refer to a section of an orchestra that consists of string instruments, such as violins, violas, cellos, and double basses. This group can perform together or in smaller ensembles.
Supergeometry 1970-01-01
Supergeometry is a branch of mathematics that extends the concepts of geometry to include both geometric structures and "supersymmetrical" objects, which involve odd or "fermionic" dimensions. It arises from the study of supersymmetry in theoretical physics, where it plays a crucial role in string theory and quantum field theory. In conventional geometry, one typically works with spaces that are defined by traditional notions of points and curves in even-dimensional Euclidean spaces.
Symmetric space 1970-01-01
A symmetric space is a type of mathematical structure that arises in differential geometry and Riemannian geometry. More specifically, a symmetric space is a smooth manifold that has a particular symmetry property: for every point on the manifold, there exists an isometry (a distance-preserving transformation) that reflects the manifold about that point.
Symmetry (physics) 1970-01-01
In physics, symmetry refers to a property or characteristic of a system that remains invariant under certain transformations. This can involve spatial transformations, such as translations, rotations, and reflections, as well as other types such as time reversibility or particle interchange. Symmetry plays a critical role in understanding physical laws and phenomena, often leading to conservation laws and simplifying complex problems.
Symmetry set 1970-01-01
The term "symmetry set" can refer to different concepts depending on the context in which it is used. Here are a few interpretations: 1. **Geometry and Mathematics**: In geometry, a symmetry set may refer to a set of transformations (such as rotations, reflections, and translations) that leave an object unchanged or invariant. For example, the symmetry set of a square includes rotations by 0°, 90°, 180°,270° and reflections across its axes of symmetry.
Symplectic space 1970-01-01
Symplectic space is a fundamental concept in mathematics, specifically in the field of symplectic geometry, which is a branch of differential geometry and Hamiltonian mechanics. A symplectic space is a smooth, even-dimensional manifold equipped with a closed non-degenerate differential 2-form called the symplectic form.
Synthetic differential geometry 1970-01-01
Synthetic Differential Geometry (SDG) is a branch of mathematics that provides a framework for differential geometry using a synthetic or categorical approach, rather than relying on traditional set-theoretic and analytical foundations. This approach is particularly notable for its use of "infinitesimals," which are small quantities that can be treated algebraically in a way that is similar to how they are used in non-standard analysis.
Systolic freedom 1970-01-01
"Systolic freedom" is not a widely recognized term in mainstream literature, science, or medicine as of my last knowledge update in October 2023. It is possible that the term has emerged in a specific niche area, academic research, or emerging technology after that time. However, in a broader context, "systolic" often refers to the phase of the heartbeat when the heart muscle contracts and pumps blood, while "freedom" could imply liberation or the absence of constraints.