A measure of the total mass accretion of meteoritic material by the Earth is obtained from analyses of deep-sea sediments and dust collected in remote regions ( Pettersson, 1960 ).

The first female student in Sweden was Betty Pettersson ( 1838 – 1885 ), who had already worked as a private tutor for several years when she took the " studentexamen " in 1871.

Two years later, Christer Pettersson ( d. 2004 ), a small-time criminal and drug addict, was arrested, tried and convicted for Palme's murder.

Carl Gustaf Christer Pettersson ( April 23, 1947-September 29, 2004 ) was a Swedish criminal who was a suspect in the 1986 assassination of Olof Palme, the Prime Minister of Sweden.

Pettersson grew up in a middle-class family in Solna outside of Stockholm and later moved to the suburb Sollentuna.

However, Pettersson suffered a head injury that he would never fully recover from.

Pettersson was sentenced to prison for manslaughter for the killing.

Pettersson was accused of Palme's murder after an extensive investigation by the Swedish police.

The original tip-off leading to the incrimination of Pettersson has been described by some as very dubious.

Although the. 357-caliber Magnum pistol used to kill Palme was never found, Pettersson was convicted and sentenced to life imprisonment in 1988.

Pettersson was awarded about $ 50, 000 in compensation for defamation by the police and for wrongful imprisonment.

In some of those interviews – particularly on TV3 – Pettersson admitted to killing Olof Palme, but his confession was not treated seriously.

On several occasions Pettersson pointed out that he himself was a " Social Democrat ", and liked Olof Palme.

In 1998, the Supreme Court rejected a prosecutor's appeal to retry Pettersson citing that evidence was not strong enough to place him at the scene of the shooting.

On September 29, 2004 Pettersson died at the Karolinska University Hospital after he supposedly fell and suffered a cerebral haemorrhage.

Pettersson had reported being harassed by the police on September 15, the day before he was found with head injuries, with unsubstantiated rumors circulating that he was a victim of police violence.

Pettersson was buried in his hometown Sollentuna in January 2005.

Shortly before Pettersson was taken to hospital, he had contacted the son of Olof Palme, Mårten Palme, explaining he had something to tell the family.

Palme said he was willing to meet Pettersson if he was ready to confess to the murder.

But the meeting did not take place, and what Pettersson had to tell was never revealed.

According to a documentary aired on the Swedish television channel SVT in February 2006, associates of Pettersson claimed that he had confessed to them his role in Olof Palme's murder, but with the explanation that it was a case of mistaken identity.

Apparently, Pettersson had intended to kill a drug dealer, dressed in similar clothing, who often walked along the same street at night.

Both before and after his death, Christer Pettersson had achieved a certain notoriety as a cult figure, being portrayed as a victim of society and as a scapegoat in the media.

* Laila Barkefors: Allan Pettersson: det brinner en sol inom oss-en tonsättares liv och verk.

* 1923 – Andersson, Pettersson och Lundström

Some counterexamples are: Andrzej Panufnik ( 10 ; if one includes two early lost symphonies, 12 ), Hans Werner Henze ( 10 ; his ninth symphony was actually choral ), Eduard Tubin ( 10, died writing his eleventh symphony ), William Schuman ( 10 ; his first two were withdrawn ), Alun Hoddinott ( 10 ), David Diamond ( 11 ), Joachim Raff ( 11, as well as an early destroyed one ), Edmund Rubbra ( 11 ; his ninth symphony was choral ), Robert Simpson ( 11 ; his planned final 12th symphony was to be choral ), Heitor Villa-Lobos and Darius Milhaud ( 12 each ), Vagn Holmboe ( 13, as well as four additional symphonies for strings alone ), Roy Harris ( 13 ; he was more superstitious about the number 13 than the number 9, and so labelled his 13th as 14th ), Glenn Branca ( 14, although Branca's definition of " symphony " is somewhat untraditional ), Gloria Coates ( 15, although she only recognized and numbered her first six symphonies as " symphonies " after completing her 7th ), Dmitri Shostakovich ( 15 ), Rued Langgaard ( 16 plus an unnumbered choral symphony, Sinfonia Interna ), Henry Cowell ( 17 ), Allan Pettersson ( 17 ), Lev Knipper ( 20 ), Jānis Ivanovs ( 21 ), Mieczysław Weinberg ( 22 ), Nikolai Myaskovsky ( 27 ), Havergal Brian ( 32 ), Alan Hovhaness ( 67 ), Derek Bourgeois ( 72 ), and Leif Segerstam ( 253 ).

Directly across from the Gardens I found a bus stop sign for T 4 and rode it down to the Bosphorus, with the sports center on my left just before I reached the water and the entrance to Dolmabahce Palace immediately after that.

He also bought a huge square of pegboard for hanging up his tools, and lumber for his workbench, sandpaper and glue and assorted nails, levels and T squares and plumb lines and several gadgets that he had no idea how to use or what they were for.

If Af is the change per unit volume in Gibbs function caused by the shear field at constant P and T, and **yr is the density of the fluid, then the total potential energy of the system above the reference height is Af.

The lines are asymmetric and over the range of field Af gauss and temperature Af the asymmetry increases with increasing Af and decreasing T.

We are trying to study a linear operator T on the finite-dimensional space V, by decomposing T into a direct sum of operators which are in some sense elementary.

We can do this through the characteristic values and vectors of T in certain special cases, i.e., when the minimal polynomial for T factors over the scalar field F into a product of distinct monic polynomials of degree 1.

If we try to study T using characteristic values, we are confronted with two problems.

Second, even if the characteristic polynomial factors completely over F into a product of polynomials of degree 1, there may not be enough characteristic vectors for T to span the space V.

This is clearly a deficiency in T.

The second situation is illustrated by the operator T on Af ( F any field ) represented in the standard basis by Af.

The characteristic polynomial for A is Af and this is plainly also the minimal polynomial for A ( or for T ).

Thus T is not diagonalizable.

If ( remember this is an assumption ) the minimal polynomial for T decomposes Af where Af are distinct elements of F, then we shall show that the space V is the direct sum of the null spaces of Af.

Let T be a linear operator on the finite-dimensional vector space V over the field F.

Let p be the minimal polynomial for T, Af, where the Af, are distinct irreducible monic polynomials over F and the Af are positive integers.

( C ) if Af is the operator induced on Af by T, then the minimal polynomial for Af is Af.

It is certainly clear that the subspaces Af are invariant under T.

If Af is the operator induced on Af by T, then evidently Af, because by definition Af is 0 on the subspace Af.

Thus Af is divisible by the minimal polynomial P of T, i.e., Af divides Af.

If Af are the projections associated with the primary decomposition of T, then each Af is a polynomial in T, and accordingly if a linear operator U commutes with T then U commutes with each of the Af, i.e., each subspace Af is invariant under U.

In the notation of the proof of Theorem 12, let us take a look at the special case in which the minimal polynomial for T is a product of first-degree polynomials, i.e., the case in which each Af is of the form Af.