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Theoretical, methodological, and empirical contributions regarding networks within the context of graph theory constitute a valuable interface between geography and mathematics. Seeking to assess mathematical network geography's past, present, and future, this article addresses such research and literature by discussing new knowledge produced from networked geographic phenomena—especially Erdös collaboration graphs depicting mentorships or authorships among scholars; outlining a brief history of networks in geographical analysis; and couching spatial autocorrelation within its geographic network links. General commentary transitions into examples of Erdös graphs and their implications for collaborations. The narrative also speaks to networked space challenges of established geographic thought (e.g., Tobler's first law of geography), with special reference to contributions by Boots and his coauthors. This article concludes with a treatment of graph theory, networks, and spatial autocorrelation. [ABSTRACT FROM AUTHOR]

Is mathematical category theory a unifying tool for geography? Here we look at a few basic category theoretical ideas and interpret them in geographic example. We also offer links to indicate how category theory has been used as such in other disciplines. Finally, we announce the direction of our research program on this topic as a way to facilitate the learning, and maintenance of learning, of GIS software – and in the spirit of Quaestiones Geographicae, invite debate, comment, and contribution to this program in spatial mathematics.

The article discusses the issue of kudzu, an invasive vine, and its impact on the environment. Kudzu grows rapidly and can cover large areas, depriving other plants of sunlight and releasing stored carbon into the atmosphere. Various methods have been used to control kudzu, including chemical and mechanical interventions, as well as introducing grazing animals. However, there is also potential to utilize kudzu as a food source, although there is currently little demand for it. The author explores the idea of promoting kudzu as a unique and trendy food item, similar to how kale gained popularity in recent years. The article also mentions the involvement of the Les Dames d'Escoffier International organization in promoting the consumption of kudzu. The author describes their own efforts to organize a Zoom call and a subsequent event to raise awareness about kudzu as a food option. The article concludes with the author's dreams of kudzu becoming a widely recognized and celebrated ingredient in various culinary contexts. [Extracted from the article]

The article discusses the use of QR codes in various contexts, such as linking static paper images to servers using smartphone cameras. It suggests that QR codes can be used to represent places and spaces in mathematical geography models, adding cultural information and complexity to the model. The article also mentions the use of QR codes in fitness smartphone apps and in a project that provides refurbished pacemakers to developing nations. It introduces the concept of a "QRchive" for indexing publications and discusses the transition from static to dynamic QR codes. The article concludes by mentioning the use of dynamic QR codes in the IMaGe logo, allowing readers to access various properties and spaces. [Extracted from the article]

This article is a memorial for two individuals, John Nystuen and Bob Austin, who were original board members of Solstice. John Nystuen was a professor of geography at the University of Michigan and made significant contributions to the field. He was known for his mentoring and research in quantitative geography. Bob Austin was a geographer and GIS expert who worked in academia and the private sector. He was passionate about sharing his knowledge and advancing technological opportunities. Both individuals had a love for nature, travel, and learning. They will be remembered for their contributions and cherished by their loved ones. [Extracted from the article]

This article discusses the connections between geography and mathematics, specifically focusing on the basic elements of maps and how they relate to mathematical concepts. The author identifies several sequences that highlight the parallels between the two disciplines, such as the relationship between the main body of a map and set theory, or the connection between orientation on a map and trigonometry. The article also explores the use of bivariate thematic maps as a way to visualize spatial data using set theory principles. The author suggests that integrating mathematical ideas with other subjects can be a valuable approach in teaching mathematics, particularly for students who may have missed or struggled with certain topics. [Extracted from the article]