Robert Russell was an Irish mathematician known for his contributions to the field of mathematics during the 19th century. He is often associated with developments in mathematical analysis and geometry. While specific details about his life may not be widely documented, his work, along with that of his contemporaries, contributed to the advancement of mathematical thought during that period.

As of my last update in October 2023, Robert Feys is not a widely recognized figure in public discourse, academia, or any major field that would typically be encountered in the general knowledge base. It is possible that he could be a professional in a niche area or a local figure not covered extensively in mainstream media.

Richard Murray is a mathematician known for his contributions to various areas in mathematics, particularly in the field of applied mathematics and mathematical biology. He has worked on topics such as dynamical systems, complex networks, and mathematical modeling. He may be recognized for his work in applying mathematical techniques to biological problems, including studies of ecological systems, population dynamics, and other interdisciplinary research efforts that combine mathematics with the biological sciences.

René Goormaghtigh (1865-1953) was a Belgian mathematician known for his work in the fields of mathematics, particularly in geometry and analysis. He made significant contributions to various areas in mathematics and was involved in the promotion of mathematical education.

Rehuel Lobatto is a numerical integration method, specifically a type of polynomial interpolation and quadrature rule used for approximating definite integrals. It is named after the mathematician José Rehuel Lobatto and is part of a family of methods that employ higher-degree polynomials to achieve more accurate approximations of integrals compared to simpler methods like the trapezoidal rule or Simpson's rule.

Raphael Høegh-Krohn is a Norwegian economist and academic known for his work in areas such as economics, finance, and possibly other fields. However, there are limited publicly available details on his specific contributions or roles within these fields.

Péter Varjú is a name that could refer to an individual, but without more specific context, it is not clear who he is or what he is known for. There may be several people with that name.

Péter Pál Pálfy is a Hungarian physicist known for his contributions to the fields of optics, condensed matter physics, and photonics. He has worked on various topics, including light-matter interactions, theoretical models of optical phenomena, and experimental studies in the realm of quantum optics. His research often involves the application of physics principles to practical problems in technology and materials science.

Peter McCullagh is a prominent statistician known for his contributions to the fields of statistics and data analysis. He is particularly recognized for his work on generalized linear models (GLMs), a flexible generalization of ordinary linear regression that allows for response variables that have error distribution models other than a normal distribution. McCullagh has co-authored influential texts and papers, often exploring the theoretical foundations and practical applications of statistical models.

Pedro Filipe Soares is a Portuguese politician and a prominent member of the Left Bloc (Bloco de Esquerda), a political party in Portugal. He has served in various capacities within the party and is known for his focus on social justice, progressive policies, and economic reforms. He has been active in Portuguese politics, contributing to debates on issues such as labor rights, public services, and environmental policies.

Pauline Mellon refers to a figure affiliated with the renowned Mellon family, known for their significant contributions to business, philanthropy, and the arts in the United States. The Melon family is prominently associated with banking and finance, particularly through Andrew W. Mellon, who served as U.S. Secretary of the Treasury in the 1920s.

Paul Guldin (also known as Paul Guldin or Paul Guldin the Elder) was a notable figure in the field of mathematics during the 16th and 17th centuries. He is best known for his work related to geometric concepts, particularly in relation to volumes of solids of revolution. Guldin's work laid the groundwork for further developments in calculus and mathematical analysis.

Olav Reiersøl (1904–1995) was a Norwegian mathematician known for his contributions to statistics and probability theory. He had a significant impact on the field, particularly in the areas of statistical inference and the mathematical foundations of statistics. Reiersøl's work helped lay the groundwork for modern techniques in statistical analysis and was influential in both theoretical and applied statistics.

Niels Erik Nørlund (1881-1961) was a notable Danish mathematician recognized for his contributions to the fields of analysis and mathematical logic. He is particularly known for his work on functional analysis and for the Nørlund sums, which are a type of sequence summation method. Nørlund also contributed to the development of other mathematical concepts and theories.

Neža Mramor-Kosta is a notable figure, most likely known for her work or contributions in a specific field. However, as of my last update in October 2023, there is limited publicly available information about her. It's possible that she is a professional in areas such as academia, science, art, or another field that has reached a level of recognition.

N. G. W. H. Beeger does not appear to be a widely recognized term, name, or acronym as of my last knowledge update in October 2021. It is possible that it could refer to a specific individual, organization, or concept that has gained relevance after that date or may not be widely documented.

Miklós Laczkovich is a Hungarian mathematician known for his contributions to various fields, including analysis and topology. He is particularly recognized for his work in the areas of real analysis and the theory of functions of several variables. One of his notable achievements is a result in the theory of measure and integration, specifically related to the existence of non-measurable sets. Laczkovich has also made significant contributions to the study of fractals and dynamical systems.

Michel Plancherel is a notable mathematician known for his contributions to functional analysis and probability theory. He is particularly recognized for his work on the Plancherel theorem, which relates to the representation theory of groups and harmonic analysis. The theorem connects the Fourier transform and the representation of functions in terms of orthogonal bases, making significant contributions to our understanding of how signals can be decomposed into their constituent frequencies.

Matti Vuorinen is a Finnish mathematician known for his contributions to complex analysis, particularly in the area of geometric function theory. He has published research on topics such as conformal mapping, analytic functions, and several complex variables. Vuorinen's work often explores the properties of various mathematical functions and their applications, influencing both pure and applied mathematics.

Matthew Wyatt Joseph Fry appears to be a relatively obscure individual, and there is limited publicly available information about him. It's possible that he may not be widely recognized or could belong to various contexts or fields, such as academia, the arts, or other professions. Could you provide more context or specify the area you're referring to? That would help in providing a more accurate answer.