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An acyclic orientation of an undirected graph is an assignment of a direction to each edge (an orientation) that does not form any directed cycle and therefore makes it into a directed acyclic graph. …
Solid-state physics is the study of rigid matter, or solids, through methods such as quantum mechanics, crystallography, electromagnetism, and metallurgy. Many pure and applied mathematics tools can b…
For questions about SnapPy, a program for studying the topology and geometry of 3-manifolds.
Questions related to the International Congress of Mathematicians that took place in Seoul, Korea, 13-21 August 2014.
For the formal concept of "observers" such as defined by Bennett, Hoffman, Prakash in their work "Observer Mechanics: a formal theory of perception" or other formal definitons of 'observers'.
Questions related to mathematical chemistry which include application of mathematics to problems in chemistry and the development of mathematical methods suitable for such applications and for the for…
For questions regarding the ethics of mathematical research and publishing.
Differential game theory investigates conflict in systems that are driven by differential equations.