What Do You Know About Schubert Variety?

Hermann Schubert is credited with inventing the theorem.

A Schubert variety belongs to a certain subvariety of the Grassmannian. The Grassmannian is a geometric object that represents all possible linear subspaces of a given vector space. Schubert varieties are subvarieties of the Grassmannian that are defined by certain conditions on the dimension of intersections of linear subspaces. Therefore, the correct answer is Grassmannian.

The classification of points used to represent the theorem is singular points. Singular points are points on a curve where the curve fails to be smooth or differentiable. They can be endpoints, cusps, or self-intersections of the curve. This classification is relevant to the theorem being discussed as it involves analyzing the behavior of the curve at these singular points.

The letter "W" typically represents a vector space in mathematics. A vector space is a collection of vectors that can be added together and multiplied by scalars. It satisfies certain properties, such as closure under addition and scalar multiplication. Therefore, the correct answer is "Vector space."

The set of complex numbers includes all real numbers and imaginary numbers. Since W covers all complex numbers, it also covers real numbers. However, it does not cover natural numbers or whole numbers, as these sets are subsets of the complex numbers.

The correct answer is "Arbitrary field". This suggests that the field W can cover any type of field without any specific restrictions or limitations. It can encompass various fields such as global, local, or external fields depending on the context or requirements.

The correct answer is Borel subgroup. In mathematics, a Borel subgroup is a specific type of subgroup that plays a significant role in algebraic groups and Lie groups. Borel subgroups are maximal solvable subgroups and have many important properties. Therefore, B represents the Borel subgroup in this context.

The correct answer is Parabolic subgroup. In mathematics, a parabolic subgroup is a subgroup of a given group that stabilizes a certain point in a projective space. This term is often used in the context of algebraic groups and Lie groups. It represents a subgroup that preserves a certain geometric structure, similar to how a parabola preserves its shape when translated or rotated.

X represents a homogeneous space. A homogeneous space is a mathematical concept that refers to a space where every point has the same properties or characteristics. In other words, the space is uniform and consistent throughout, without any variations or differences between its points. This is in contrast to a heterogeneous space, which would have varying properties or characteristics at different points. Therefore, X represents a space where all points are the same, making it a homogeneous space.

X is equal to G divided by P.