Arhivă — Seria A

Classification of non static spherically symmetric space-times according to their proper conformal vector fields

Direct integration technique is used to study proper conformal vector field in non conformally flat spherically symmetric non static space-times. Using the above mentioned technique we show that there exist two possibilities when the above space-times admit proper conformal vector fields.

ªtefan V. STEFÃNESCU

In the molecular biology as well as for modeling the social and economical processes it is necessary to determine the change point θ , a<θ<b , of the frequence response from a random variable X. We`ll suppose that the variable X has a constant probability density function on the subdomains [a , θ ] , respectively (θ , …

Binary relations – addenda 2 (sections, composabilities)

Experiment for the rediscovery of the perfect proportion of rectangles

Ring laser resonator with stimulated brillouin scattering mirror

Two spectral shaping methods of a broadband fibre source for biomedical oct imaging

Results and discussions on Length INM key comparisons

Two boundary element approaches for the compressible fluid flow around a non-lifting body

Ternary solutions of the carbanion monosubstituted pyridazinium ylids in binary protic solvents

Polymeric films properties of POLY (vInYl alcohol) and POLY (HYDROXY urethane) in different concentrations

Book review