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Involutes of polygons of constant width in Minkowski planesCraizer, Marcos ; Martini, Horst, 1954-Naj bo ▫$P$▫ konveksen poligon v ravnini. Označimo z ▫$U$▫ homotetsko kopijo vektorske vsote ▫$P$▫ in ▫$-P$▫. Potem poligon ▫$U$▫, kot enotska krogla, inducira tako normo, da ima ▫$P$▫ glede na to ... normo konstantno širino Minkowskega. Definiramo pojme kot so ukrivljenost Minkowskega, evolute in involute za poligone konstantne ▫$U$▫-širine, in dokažemo, da se ohranjajo mnoge lastnosti gladkega primera, ki so že popolnoma preučene. Iteracija involut generira par zaporedij poligonov konstantne širine glede na normo Minkowskega in njeno dualno normo. Dokažemo, da ta zaporedja konvergirajo k simetričnim poligonom z istim središčem, ki ga lahko obravnavamo kot središčno točko poligona ▫$P$▫.Source: Ars mathematica contemporanea. - ISSN 1855-3966 (Vol. 11, no. 1, 2016, str. 107-125)Type of material - article, component part ; adult, seriousPublish date - 2016Language - englishCOBISS.SI-ID - 17842009
Author
Craizer, Marcos |
Martini, Horst, 1954-
Topics
evoluta območja |
Barbierov izrek |
množica središčne simetrije |
ukrivljenost |
krivulje konstantne širine |
diskretna diferencialna geometrija |
evolute |
geometrija Minkowskega |
normirana ravnina |
ekvidistante |
involute |
nosilec (funkcija) |
širina (funkcija) |
area evolute |
Barbier's theorem |
center symmetry set |
curvature |
curves of constant width |
discrete differential geometry |
evolutes |
Minkowski geometry |
normed plane |
equidistants |
involutes |
support function |
width function
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Martini, Horst, 1954- |
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