Kovtun A. Spesial polynomial splines of the third, fourth and fifth degrees in geometrical modeling.

Українська версія

Thesis for the degree of Candidate of Sciences (CSc)

State registration number

0406U005164

Applicant for

Specialization

  • 05.01.01 - Прикладна геометрія, інженерна графіка

28-11-2006

Specialized Academic Board

Д26.056.06

Essay

Work is devoted to development and research of properties special polynomial splines of the third, fourth and fifth degrees and to modeling on their basis of smooth curves and surfaces. In the dissertation the new way of representation of segments of thirds, the fourth and fifth degrees with managing points which belong to a curve is offered. As various variants of representation of segments of polynoms of the fourth and fifth degrees on the set points, the first and in them and in the middle of a segment are offered. On the basis of offered polynomial segments methods of the task and calculation spline curves with achievement of smoothness from orders are offered/ Various ways of the task regional conditions: points, the first, the second and the third derived are considered. Properties of the received splines are investigated. It is shown, that all not local splines have property to attenuation oscillations, and with increase in a degree of a spline these properties grow at achievement of the same order of smoothness.

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