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Selected problems from planimetry
MÍKOVÁ, Lucie
This diploma thesis is focused on Selected problems in planimetry. The aim of this diploma thesis is description not only planimetric problems and their verification in a dynamic mathematical program GeoGebra, but also presentation of the author after whom it is called. The thesis is illustrated with pictures, which can help the reader to understand the problem and verification. This thesis can be used as a supplement the curriculum in secondary schools, where using dynamic program GeoGebra and subsequent verification may reach a better understanding of the topic.
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Projective Geometry and the Law of Mass Action
Gottvald, Aleš
A new law of nature asserts that chemical equilibria and chemical kinetics are governed by fundamental principles of projective geometry. The equilibrium constans of chemical reactions are the invariants of projective geometry in disguise. Chemical reactions may geometrically be represented by incidence structures, which are preserved under projective transformations. Theorems of Ceva, Menelaus, and Carnot for triangles and n-gons represent the chemical equilibria, while Routh's theorem represents non-equilibria. Intrinsically projective Riccati's differential equation, being also generic to many other equations of mathematical physics, governs parametric dependence of the equilibrium constants. The theory offers tangible geometrizations and generalizations to the Law of Mass Action, including a new projective-geometric approach to soft computing of very complex problems.
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Projektivní geometrie - náhled z vyšší dimenze
Gottvald, Aleš
Upon recognizing principal and ubiquitous role of projective geometry in theory and applications, we select some of its basic concepts and ideas (homogeneous coordinates, Möbius transformation, cross-ratio, Cayley's hyperbolic distance, ...), and show their first metamorphoses.
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