Graph drawing is a field of computational geometry and computer science that focuses on the visualization of graphs, which are mathematical structures consisting of nodes (or vertices) connected by edges (or arcs). This area of study is concerned with developing algorithms and techniques to represent these graphs in a visually appealing and meaningful way, so that their structure and properties can be understood more easily.

Alfred Kempe (1935–2015) was an influential mathematician known primarily for his work in graph theory and combinatorics. He is perhaps best known for the Kempe Chains and the Kempe Conjecture, which are significant in the context of the Four Color Theorem, stating that any planar map can be colored with no more than four colors such that no two adjacent regions share the same color.

As of my last knowledge update in October 2021, Amanda Chetwynd is not a widely recognized public figure, and there may not be significant publicly available information about her. It's possible that she could be a private individual or a professional in a specific field that has not gained widespread recognition.

Arthur Hobbs is a mathematician known for his work in the field of mathematics, particularly in areas related to analysis and topology. However, there might not be extensive widely available information on his specific contributions or biography, as he may not be as widely recognized as some other figures in the field.

"Daniel Kráľ" could refer to a person, as it's a common name in some Slavic countries, particularly in Slovakia and the Czech Republic. However, without additional context, it is difficult to pinpoint exactly who or what you might be referring to. In general, "Daniel" is a common first name, and "Kráľ" translates to "king" in Slovak and Czech.

Carsten Thomassen is a Danish mathematician known for his contributions to graph theory and combinatorics. He has made significant advancements in various areas, particularly in the study of graph properties, graph coloring, and planar graphs. Thomassen is also recognized for his work on the relationships between graph theory and topology. He has published numerous papers and has been involved in various mathematical collaborations.

Frank Harary was an influential American mathematician known primarily for his contributions to the fields of graph theory and topology. He was born on May 8, 1921, and passed away on December 18, 2005. Harary is particularly well-known for introducing and popularizing various concepts in graph theory, including the study of networks and their applications.

Gabriel Andrew Dirac does not seem to be a widely recognized public figure, concept, or term as of my last knowledge update in October 2023. It's possible that he may be a private individual or a more recent figure who has gained prominence after that date.

Nick Wormald is a well-known figure in the fields of science and education, particularly recognized for his contributions to biology, ecology, and conservation. He has been involved in various research projects and educational initiatives aimed at promoting understanding of environmental issues and the importance of biodiversity.

Hassler Whitney was an influential American mathematician known for his contributions to topology and related areas of mathematics. He is particularly recognized for his work in the field of algebraic topology and for his contributions to the development of various mathematical theories and concepts. One of his notable contributions is the Whitney embedding theorem, which addresses how manifolds can be embedded into Euclidean spaces. This work has had significant implications in both pure mathematics and applied fields.

Herbert Grötzsch (1914–2003) was a German mathematician known for his contributions to graph theory and combinatorial geometry. He is often recognized for the Grötzsch Graph, which is a notable example in the study of properties of graphs, particularly in relation to coloring and planar graphs. The Grötzsch Graph is a triangle-free graph that requires four colors for a proper coloring, illustrating concepts in the field of graph coloring.

Shimon Even is a prominent Israeli computer scientist, best known for his contributions to the fields of computer science, particularly in the areas of algorithms, graph theory, and computational complexity. He has co-authored several important papers and has made significant contributions to the development of theoretical computer science. One of his notable achievements is the Even–Shimonovitch theorem in graph theory. Additionally, he is known for his work in distributed computing and has contributed to the study of parallel algorithms.

Jan Kratochvíl is not widely known in popular culture or significant historical events; rather, the name might refer to various individuals in fields such as sports, academia, or other professions, particularly in regions like the Czech Republic.

Jeannette Janssen does not seem to be a widely recognized name in common knowledge or popular culture as of my last update in October 2021. It's possible that she may be a private individual, a professional in a specific field, or perhaps someone who has gained prominence after that date.

Joan Hutchinson could refer to various meanings depending on the context, such as a person's name or a fictional character. However, without additional context, it's challenging to provide a specific answer.

John William Theodore Youngs may refer to an individual, but I don't have specific information about a person by that name in widely available historical or contemporary records. It's possible that he could be a private individual not well-documented in public databases or literature.

Karen L. Collins could refer to several individuals, but without more context, it's unclear which specific person you are asking about. One notable figure is Karen L. Collins, an expert in nutrition and health, particularly focusing on food and chronic disease prevention. She has contributed to research and education in the field. If you have a specific context or area (e.g., academia, healthcare, literature) in mind regarding Karen L.

Katherine Heinrich does not appear to be a widely recognized public figure, historical figure, or well-known entity as of my last training cut-off in October 2023. It's possible that she could be a private individual or a less prominent figure who has emerged more recently.

Kôdi Husimi (or Kōdi Husimi) refers to a mathematical concept in statistical mechanics related to the treatment of quantum systems, particularly in the context of phase-space formulation. The Husimi function is a type of quasi-probability distribution used to represent quantum states in phase space, providing a way to visualize and analyze quantum phenomena in an analogous manner to classical probability distributions.

Alpha decay is a type of radioactive decay in which an unstable atomic nucleus releases an alpha particle and transforms into a lighter nucleus. An alpha particle consists of two protons and two neutrons, essentially making it identical to a helium nucleus. During alpha decay, the original nucleus (parent nucleus) loses these two protons and two neutrons, causing the atomic number to decrease by 2 and the mass number to decrease by 4.