#### Filter Results:

- Full text PDF available (3)

#### Publication Year

1970

2008

- This year (0)
- Last 5 years (0)
- Last 10 years (2)

#### Publication Type

#### Co-author

#### Journals and Conferences

Learn More

- Péter Szekeres
- Nature
- 1970

- Marie-Noëlle Célérier, Péter Szekeres
- 2008

Extending the study of spherically symmetric metrics satisfying the dominant energy condition and exhibiting singularities of power-law type initiated in [2], we identify two classes of peculiar interest: focusing timelike singularity solutions with the stress-energy tensor of a radiative perfect fluid (equation of state: p = 1 3 ρ) and a set of null… (More)

The paper presents a complete multimedia educational program of DC servo drive for distant learning. The program contains three parts: animation, simulation and internet-based measurement. The animation program gives the operation of DC motors as well as its timeand frequency-domain equations, transfer functions and the theoretical background necessary to… (More)

Newtonian Cosmology is commonly used in astrophysical problems, because of its obvious simplicity when compared with general relativity. However it has inherent difficulties, the most obvious of which is the non-existence of a well-posed initial value problem. In this paper we investigate how far these problems are met by using the post-Newtonian… (More)

- ‹
- 1
- ›