János Bolyai (1802–1860) was a Hungarian mathematician known for his foundational work in non-Euclidean geometry. He is best known for developing the principles of hyperbolic geometry independently of the Russian mathematician Nikolai Lobachevsky. Bolyai's work demonstrated that it is possible to construct a consistent geometric system in which the parallel postulate of Euclidean geometry does not hold.

Qāḍī Zāda al-Rūmī, also known simply as Qāḍī Zāda, was a notable figure in the realm of Islamic scholarship and science during the late medieval period, specifically in the 15th century. He was born in 1364 in the city of Edirne (Adrianople) in present-day Turkey and is esteemed for his contributions to mathematics, astronomy, and various Islamic sciences.

The Hilbert curve is a continuous fractal space-filling curve that maps a one-dimensional interval (like the interval [0, 1]) onto a multi-dimensional space, typically a square or cube. It was first proposed by the German mathematician David Hilbert in 1891. The curve is constructed recursively, starting from a simple shape and progressively refining it.

The Hasse–Minkowski theorem is a result in the field of number theory, specifically concerning the theory of quadratic forms. It establishes a fundamental connection between the local and global solvability of quadratic forms over the rational numbers. In simple terms, the theorem states that a quadratic form over the rational numbers can be represented by integers if and only if it can be represented by integers when considered over the completions of the rational numbers at all finite places and at infinity (the real numbers).

The Minkowski–Bouligand dimension, also known as the box-counting dimension, is a concept in fractal geometry that provides a way to measure the dimensionality of a set in a more general sense than traditional Euclidean dimensions. It is particularly useful for non-integer dimensions, which often arise in fractals and irregular geometric shapes.

Parbelos, also known as "Tarbelos," refers to a concept in mathematics, particularly in the field of geometry. It is associated with a specific type of mathematical figure or geometric construct, often related to problems involving curves and areas. However, the term may not be widely recognized, and it can vary depending on the context.

A surface of constant width is a geometric shape in three-dimensional space such that any two parallel planes that intersect the surface have the same distance between them, regardless of the orientation of the planes. In other words, the distance between parallel tangents to the surface is constant, serving as a uniform measure of width. One of the classic examples of a surface of constant width is the **sphere**, where the distance between any two parallel planes that touch the sphere is equal to the diameter of the sphere.

"Ungula" is a term that can refer to various contexts depending on the field: 1. **Biology and Zoology**: In biological terms, "ungula" is derived from Latin and refers to a hoof or a claw. It can be used to describe the hooves of ungulates, which are a group of large mammals that includes animals like horses, cows, and deer.

Flight refers to the act of moving through the air, typically associated with aircraft, birds, and other creatures capable of aerial locomotion. The concept of flight can be explored from several perspectives: 1. **Aerodynamics**: Flight involves principles of aerodynamics, which is the study of the behavior of air as it interacts with solid objects like wings.

Momentum is a concept used in both physics and finance. ### In Physics: Momentum refers to the quantity of motion of a moving body and is calculated as the product of an object's mass and its velocity. The formula for linear momentum (\(p\)) is: \[ p = mv \] where: - \(p\) is momentum, - \(m\) is mass, and - \(v\) is velocity.

Motion estimation is a key technique used in computer vision, video compression, and image analysis that involves determining the motion of objects or regions within a sequence of images or video frames. The primary goal of motion estimation is to identify how the position of objects changes over time, which can occur due to the motion of the camera, the objects themselves, or both. ### Applications of Motion Estimation 1. **Video Compression**: In codecs like H.264 or HEVC (H.

Velocity is a term that can refer to different concepts depending on the context in which it is used. Here are a few common interpretations: 1. **Physics:** In physics, velocity is a vector quantity that refers to the rate at which an object changes its position. It has both a magnitude (speed) and a direction.

A Limaçon is a type of polar curve defined by the equation \( r = a + b \cos(\theta) \) or \( r = a + b \sin(\theta) \), where \( a \) and \( b \) are constants. The shape of the Limaçon depends on the relationship between the values of \( a \) and \( b \): - If \( a > b \), the Limaçon has a dimple but does not loop.

The lexicographic product (or Cartesian product) of two graphs \( G = (V_G, E_G) \) and \( H = (V_H, E_H) \) is a graph denoted by \( G \cdot H \) (or sometimes \( G[H] \) or \( G \square H \)).

The term "shortness exponent" isn't widely known or defined within established scientific literature as of my last update. However, it's possible that it may refer to a concept in a specialized area of research, possibly in fields like physics, mathematics, or data analysis, where exponents are used to characterize statistical properties of distributions or phenomena. If you're referring to a concept in a specific context (e.g.

A **subhamiltonian graph** is a type of graph in the field of graph theory. Specifically, a subhamiltonian graph is one that contains a Hamiltonian path but not necessarily a Hamiltonian cycle. In other words, it is possible to traverse all vertices in the graph exactly once (the definition of a Hamiltonian path), but it may not be possible to return to the starting vertex without repeating any vertices (which would be needed for a Hamiltonian cycle).

A **convex bipartite graph** is a specific type of graph that belongs to the category of bipartite graphs, which are graphs where the vertex set can be divided into two disjoint subsets such that every edge connects a vertex in one subset to a vertex in the other. In a bipartite graph, there are no edges between vertices within the same subset. The term **convex** typically relates to a property concerning the induced subgraphs of the bipartite graph.

A distance-hereditary graph is a type of graph in which the distances between pairs of vertices are preserved in all connected induced subgraphs.

A **planar graph** is a type of graph that can be embedded in the plane, meaning that it can be drawn on a flat surface such that its edges intersect only at their endpoints (vertices) and do not cross each other. In other words, a graph is planar if it can be represented in such a way that no two edges overlap except at their endpoints.