The corner poset with an application to an n-dimensional hypercube stacking puzzle

For any dimension n ≥ 3, we establish the corner poset, a natural triangular poset structure on the corners of 2-color hypercubes. We use this poset to study a problem motivated by a classical cube stacking puzzle posed by Percy MacMahon as well as Eric Cross’s more recent “Eight Blocks to Madness.” We say that a hypercube is 2-color when each of its facets has one of two colors. Given an arbitrary multiset of 2-color unit n-dimensional hypercubes, we investigate when it is possible to find a submultiset of 2n hypercubes that can be arranged into a larger hypercube of side length 2 with monochrome facets. Through a careful analysis of the poset and its properties, we construct interesting puzzles, find and enumerate solutions, and study the maximum size, S(n), for a puzzle that does not contain a solution. Further, we find bounds on S(n), showing that it grows as Θ(n2n)

Puzzles as a didactic tool for development of mathematical abilities of junior schoolchildren in basic and additional mathematical education

© 2018 by the authors. Pedagogical science has always faced the issue of finding effective means for achieving educational results. This problem is especially urgent today, when in the rapidly changing world the tools, which yesterday could be used to support the interest of schoolchildren in study of mathematics and could provide an opportunity for the development of their mathematical abilities, quickly become obsolete. Today it is very important to search for new means that foster the development of students with the help of mathematics and mechanisms for including mathematics in the educational process. Thus, the aim of the article is to analyze puzzles as a didactic tool and study the possibilities of using puzzles in the process of teaching junior schoolchildren mathematics, both in the classroom and extra-curricular activities. The leading method here is the modeling of the methodical training system in general and additional mathematical education of schoolchildren, with the inclusion of a new didactic tool that fosters the students' interest to the subject, develops individual mathematical abilities: logical thinking, abstraction, combining, operating spatial images, critical thinking, mathematical memory, etc. As a result of the research, the authors have determined the place, features and methodological aspects of the inclusion of puzzles in the process of teaching mathematics in general and additional school education. They can be used in the system of classical and creative math lessons and in extra-curricular activities of students: a mathematical club, a system of mathematical competitions, a mathematical camp, etc. The practical use of this model makes it possible to reduce the lack of tools in teaching for the development of students' mathematical abilities, which in its turn, makes it possible to speak of purposefully high results in students' mathematical activities, which is confirmed by the conducted experimental research

Volume 91 Issue 18

https://dc.swosu.edu/the_southwestern/1449/thumbnail.jp

The life and work of Major Percy Alexander MacMahon

This thesis describes the life and work of the mathematician Major Percy Alexander MacMahon (1854 - 1929). His early life as a soldier in the Royal Artillery and events which led to him embarking on a career in mathematical research and teaching are dealt with in the first two chapters. Succeeding chapters explain the work in invariant theory and partition theory which brought him to the attention of the British mathematical community and eventually resulted in a Fellowship of the Royal Society, the presidency of the London Mathematical Society, and the award of three prestigious mathematical medals and four honorary doctorates. The development and importance of his recreational mathematical work is traced and discussed. MacMahon's career in the Civil Service as Deputy Warden of the Standards at the Board of Trade is also described. Throughout the thesis, his involvement with the British Association for the Advancement of Science and other scientific organisations is highlighted. The thesis also examines possible reasons why MacMahon's work, held in very high regard at the time, did not lead to the lasting fame accorded to some of his contemporaries. Details of his personal and social life are included to give a picture of MacMahon as a real person working hard to succeed in a difficult context

The BG News May 10, 1972

The BGSU campus student newspaper May 10, 1972. Volume 56 - Issue 110https://scholarworks.bgsu.edu/bg-news/3723/thumbnail.jp

H.P. Lovecraft and the Modernist Grotesque

This study serves to bring Lovecraft into a new and more significant literary context, and to highlight the relationships between modernist and grotesque literature. Various authors are mentioned with reference to both modernist and grotesque literary tendencies, and Lovecraft\u27s modernist grotesque characteristics are analyzed in their connection to the three concepts that are prominent in both modernism and the grotesque: alienation, subjectivity, and absurdity. Biographical information about Lovecraft is used minimally in this study, which focuses on textual analysis of many elements of Lovecraft\u27s writing that seem to have been previously overlooked, including religious satire, scrutiny of scientific practices, and the modernist concept of literary difficulty. This dissertation serves to establish a new place for Lovecraft in the larger context of English literature, and to establish a new way of thinking about modernism with reference to its possible roots in the experimental and diagnostic impulses of the literary grotesque