List, characteristics, and catalogue of 63 solar radio bursts at 3000 MHz, recorded at the Ondřejov observatory during January 1992 - December 1993, are presented. and Appendix Catalogue of 10 cm solar radio bursts
(January 1992 - December 1993) (s. 5-68)
List, characteristics, and catalogue of almost 200 solar radio bursts, recorded at the Ondřejov observatory during September 1990 - December 1991, are presented. and Appendix Catalogue of 10 cm solar radio bursts (September 1990 - December 1991) (s. 13-102)
Observations of the total radio flux of the Sun are presented for the period 1962-1986, ciovering two 11-year cycles of solar activity, -i.e. nos 20 and 21. Daily averages of the radio fluxes for the period in question are used for graphical and numerical representation. The minimum values fo the total radio flux of the Sun of wavelength 115 cm (260 MHz), corresponding to the solar activity minima in 1964, 1976 and 1986 are given.
For fairly general open sets it is shown that we can express a solution of the Neumann problem for the Laplace equation in the form of a single layer potential of a signed measure which is given by a concrete series. If the open set is simply connected and bounded then the solution of the Dirichlet problem is the double layer potential with a density given by a similar series.