tangency
111Corner solution — A corner solution is a special solution to an agent s maximization problem in which the quantity of one of the arguments in the maximized function is zero. The more usual solution will lie in the non zero interior at the point of tangency between …
112Gromov–Witten invariant — In mathematics, specifically in symplectic topology and algebraic geometry, Gromov–Witten (GW) invariants are rational numbers that, in certain situations, count pseudoholomorphic curves meeting prescribed conditions in a given symplectic… …
113Class A surfaces — is a term used in automotive design to describe a set of freeform surfaces of high efficiency and quality. Although, strictly, it is nothing more than saying the surfaces have curvature and tangency alignment to ideal aesthetical reflection… …
114Osculating curve — A curve C containing a point P where the radius of curvature equals r, together with the tangent line and the osculating circle touching C at P In mathematics and geometry, an osculating curve is an extension of the concept of tangent. A tangent… …
115Osculating orbit — In astronomy, and in particular in astrodynamics, the osculating orbit of an object in space (at a given moment of time) is the gravitational Kepler orbit (i.e. ellipse or other conic) that it would have about its central body (corresponding to… …
116Feasibility condition — The feasibility condition, along with the tangency condition, is used in microeconomics to solve the consumer choice problem and obtain the demand function. It is formed by taking the equality of the budget line. The general form of the… …
117Midsphere — A polyhedron and its midsphere. The red circles are the boundaries of spherical caps within which the surface of the sphere can be seen from each vertex. In geometry, the midsphere or intersphere of a polyhedron is a sphere which is tangent to… …
118Poinsot's ellipsoid — In classical mechanics, Poinsot s construction is a geometrical method for visualizing the torque free motion of a rotating rigid body, that is, the motion of a rigid body on which no external forces are acting. This motion has four constants:… …
119Ideal triangle — In hyperbolic geometry an ideal triangle is a hyperbolic triangle whose three vertices all lie on the circle at infinity. In the Poincaré disk model an ideal triangle is bounded by three circles which intersect the boundary circle at right angles …
120K-set (geometry) — In discrete geometry, a k set of a finite point set S in the Euclidean plane is a subset of k elements of S that can be strictly separated from the remaining points by a line. More generally, in Euclidean space of higher dimensions, a k set of a… …
