The chief prosecutor, Vladimir Ustinov, said a rebel attack was the "main theory" being probed after Russia's worst loss of life in a single day since Chechnya's conflict resumed in 1999.But questions are being asked about possible negligence: why was the helicopter which normally carries about 80 people so heavily loaded?
Vladimir Artyakov, governor of the Samara region, where the explosion occurred, said that a terrorist attack was the main theory, the Interfax news agency reported.
For a long time, however, its main theory has concerned parametric and nonparametric regressions.
In Section 4, we give the results of this paper and an exponential stability criterion, the main theory of this paper.
One main theory is that it stems from an intrinsic motivation to make a good impression on an audience (be the audience members real or imagined).
"We are considering many possibilities, but the main theory is that this was a terrorist attack," Mr. Cholokua said.
"Preferences" are a key concept of rational choice theory, the main theory in contemporary mainstream economics.
He stopped short of blaming a bomb for that explosion, though he did concede Thursday that the government's main theory "remains terrorism".
The third main theory is often called the "incongruity theory".
Mayor Rudolph W. Giuliani said yesterday that the main theory was that the switch had failed.
