David Kent Harrison does not appear to be a widely recognized public figure or concept based on the information available up until October 2023. It's possible that he might be a private individual, a lesser-known personality, or a fictional character.

Joshua Silver is a physicist known primarily for his work in the field of adaptive optics, as well as his contributions to the development of low-cost glasses for vision correction. He is a professor at the University of Oxford and has been involved in various projects aimed at improving access to eyeglasses in developing countries. One of his notable innovations is the creation of adjustable glasses that allow users to modify the lens power themselves, providing a customizable solution for vision correction.

Eben Matlis is a name that does not appear to be widely recognized in public discourse as of my last knowledge update in October 2023. It could refer to a specific individual, a brand, a fictional character, or a niche topic not covered extensively in mainstream sources. If you can provide more context or specify the field (e.g., technology, literature, art, etc.

Friedrich Karl Schmidt could refer to several individuals, but it is most commonly associated with notable figures in various fields. One famous Friedrich Karl Schmidt is a German mathematician and logician known for his contributions to the field of mathematical logic and the foundations of mathematics.

As of my last knowledge update in October 2021, there is no widely known figure, concept, or institution specifically named "George Seligman." It's possible that he could be a private individual or a lesser-known figure in a specific field, or that something related to him has emerged after my last update.

Goro Azumaya is a concept in the field of mathematics, specifically in the study of algebraic geometry and the theory of vector bundles. It refers to a certain type of rational curve in algebraic geometry that has specific properties. The name may also be associated with particular mathematical results or structures related to the Azumaya algebra, which is a generalization of associative algebras homomorphic to the center of a commutative ring.

Gottfried Köthe refers to a notable figure in the field of mathematics, specifically known for his contributions to functional analysis and operator theory. He is recognized for Köthe spaces, which are a class of topological vector spaces that generalize certain properties of sequence spaces. Köthe's work has had a significant influence on both theoretical and applied mathematics, particularly in areas dealing with convergence and functional spaces.

Heinrich Martin Weber (also known as H. M. Weber) was a prominent figure in the field of aviation and is best recognized for his contributions to aerodynamics and aircraft design. His work, particularly in the early to mid-20th century, has had a lasting impact on the development of various aviation technologies.

Idun Reiten is a Norwegian mathematician known for her work in the field of representation theory and algebra. Her contributions have been significant in areas such as homological algebra and the theory of modules. She is recognized for her research on abelian categories and their applications, as well as for her work on theoretical and computational aspects of algebra. Reiten has also been involved in mentoring and promoting mathematics, particularly in encouraging women in the field.

Irving Kaplansky (1917–2019) was a prominent American mathematician known for his significant contributions to various areas of mathematics, particularly in algebra and functional analysis. He made notable advancements in the fields of ring theory, group theory, and the theory of algebras. Kaplansky was also influential in the development of topology and was known for his work on operator algebras and the structure of groups.

Marie-Louise Dubreil-Jacotin was a French mathematician known for her contributions to the field during the early 20th century. She was notable for her work in algebra and geometry. Dubreil-Jacotin's research often focused on topics such as group theory and the foundations of mathematics. Additionally, she played a significant role in advocating for women in mathematics and science, contributing to the visibility and acceptance of female mathematicians in a predominantly male field.

Marko Tadić could refer to multiple individuals, but without additional context, it's difficult to pinpoint an exact person. There may be athletes, artists, or professionals with that name.

Joachim Lambek was a Canadian mathematician and logician known for his contributions to the fields of mathematical logic and category theory, particularly in relation to the algebraic and categorical foundations of logic and computer science. One of his notable contributions is the development of Lambek calculus, a type of non-classical logic that is relevant in the study of syntactic structures in linguistics and in formal grammars.

Masayoshi Nagata is a prominent Japanese mathematician known for his contributions to algebraic geometry, particularly in the study of algebraic varieties, intersection theory, and the properties of Kähler manifolds. His work has been influential in various areas, including deformation theory and the theory of moduli spaces.

Mitrofan Cioban is a Romanian painter, graphic artist, and sculptor known for his contributions to contemporary art. He has gained recognition for his unique style and techniques, often exploring themes related to identity, culture, and the human experience. His works may incorporate various mediums, reflecting a diverse artistic approach.

Nathan Jacobson was an influential mathematician known primarily for his contributions to algebra, particularly in the fields of group theory and algebraic structures. He made significant advancements in the understanding of rings, groups, and fields. Jacobson is also known for his work in linear algebra and functional analysis. He authored several important texts and papers throughout his career, helping to shape modern algebra. Jacobson's influence extends beyond his mathematical contributions, as he was also known for his role in mathematics education and mentorship.

In mathematics, particularly in the fields of algebra and geometry, a **principal homogeneous space** (or sometimes called a **torsor**) is a structure that captures the idea of "spaces that are acted upon by a group without a distinguished point." Specifically, it is a space that is associated with a group and has the property that the group can act freely and transitively on it.

Rostislav Grigorchuk is a prominent mathematician known for his significant contributions to group theory, particularly in the areas of geometric group theory and the study of groups of intermediate growth. He is recognized for constructing examples of groups that exhibit unusual properties, such as groups whose growth rates do not fit within the traditional classifications of polynomial or exponential growth.

Ruth Moufang was a prominent German mathematician known for her contributions to the field of algebra, particularly in the study of projective planes and non-Euclidean geometry. She is recognized for her work in geometry and her development of Moufang loops, which are algebraic structures generalizing certain properties of groups. Moufang made significant contributions to the understanding of associative properties and their role in the structure of mathematical systems.

Joss Bland-Hawthorn is an astrophysicist and optical astronomer known for his work in the field of astronomy and astrophysics. He has contributed to various areas including galactic dynamics and instrument development. Bland-Hawthorn is particularly recognized for his involvement in projects related to the study of the Milky Way galaxy and the development of advanced observational techniques. His research has aimed to improve our understanding of the structure and evolution of galaxies.