Über die Wechselwirkung zwischen Mathematik und Physik.
Učitelům počtů a merby, ale nejen jim
Ueber die Thatsachen, die der Geometrie zum Grunde liegen.
Úlohy o kloboucích
Článek přináší výběr některých úloh, ve kterých trpaslíci hádají barvy svých klobouků a snaží se za pomoci matematiky najít optimální strategii.
Un episodio de la crisis de fundamentos: 1904.
Un tema crucial en la educación matemática: la habilidad para cambiar el registro de representación.
Uniform error bounds for semi-discrete finite element solutions of evolutionary integral equations
In this paper, we consider the second-order continuous time Galerkin approximation of the solution to the initial problem where A is an elliptic partial-differential operator and is positive, nonincreasing and log-convex on with . Error estimates are derived in the norm of , and some estimates for the first order time derivatives of the errors are also given.
Uniqueness theorems
Univerzální přírodní tvary
Unsolved nonstandard problems.
Use of a differential evolution algorithm for the optimization of the heat radiation intensity
This article focuses on the heat radiation intensity optimization on the surface of an aluminium shell mould. The outer mould surface is heated by infrared heaters located above the mould and the inner mould surface is sprinkled with a special PVC powder. This is an economic way of producing artificial leathers in the automotive industry (e.g. the artificial leather on car dashboards). The article includes a description of a mathematical model that allows us to calculate the heat radiation intensity...
Using interactive multimedia computer tutorials for engineering graphics education.