Cash glow

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Liverpool hit by Torres setback

Liverpool striker Fernando Torres faces a minimum of four weeks on the sidelines because of a hamstring injury.

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Peace chance?

How S Asian rivals could capitalise on Mumbai attacks

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Bank cuts UK rates to 57-year low

The Bank of England has cut interest rates by one percentage point from 3% to 2%, their lowest level since 1951.

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Keane resigns as Sunderland boss

Roy Keane stands down as Sunderland manager after 27 months in charge at the Stadium of Light.

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Putin rules out early Kremlin bid

Russian Prime Minister Vladimir Putin says he will wait until 2012 to decide whether to run again for the presidency.

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Rhys killing 'appalled country'

The murder of schoolboy Rhys Jones was a terrible killing which appalled the whole country, a judge tells a jury in his summing up.

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Banks move to match interest cut

Northern Ireland's 'big four' banks say they will be matching the latest cut in interest rates by the Bank of England.

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PM 'has confidence' in Speaker

Gordon Brown says he has a "great deal of confidence" in House of Commons Speaker Michael Martin.

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US Congresswoman hangs up on Obama

A US Congresswoman hangs up the phone on President-elect Barack Obama, thinking the call is a hoax.

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Controversial Lapland theme park closes down

A Lapland-style theme park in the New Forest criticised by visitors as "hell" and a "scam" closes down permanently.

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DNA dilemma

Will European ruling result in more unsolved crimes?

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Child protection review announced

The Scottish Government announces a wide-ranging review of guidance on child protection practices.

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Interest rates

Which lenders are passing on the rate cuts to customers?

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No decision over Shields pardon

The High Court reserves judgement in the case of jailed Liverpool fan Michael Shields, who has started a pardon bid.

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Carmakers 'affect entire US economy'

The chairman of the Senate committee deciding whether to rescue the Detroit Three carmakers says the health of the entire US economy is at stake.

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Pietersen praises collective move

England captain Kevin Pietersen says he did not have to persuade any of his Test squad to return to India following the Mumbai terror attack.

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Mother guilty over Shannon kidnap

Shannon Matthews's mother and co-accused Michael Donovan are convicted of kidnapping the nine-year-old in a plot to claim a £50,000 reward.

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Lie detectors for benefit claims

Voice-recognition lie detectors are used by two Welsh councils in a bid to clamp down on people making false benefits claims.

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Menezes family's inquest protest

The family of Jean Charles de Menezes have walked out of the inquest into his death at the Oval Cricket Ground in London in protest.

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Kenya PM calls for Mugabe removal

Power-sharing in Zimbabwe is dead and Africa must unite to oust President Mugabe, says Kenya's prime minister.

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DNA database 'breached rights'

Keeping the DNA of two Britons with no convictions was a breach of their human rights, a European court rules.

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Nice smell...

But why else would anyone buy a new car these days?

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Send your video, pictures and story ideas

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Your pictures

Readers' images of snowfalls across the UK

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 World Catalog > Science > Math > Combinatorics > Design Theory > Matroids

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World Catalog > Science > Math > Combinatorics > Design Theory > Matroids

Matroids:

Coxeter Matroids

Neil White's research papers (mainly PS).

http://www.math.ufl.edu/~white/cox.html

Graand

Free Classified Ads Portal

www.graand.com

Matroid

Introductory article from MathWorld with links and references.

http://mathworld.wolfram.com/Matroid.html

Matroid Decomposition

Electronic library of mathematics monograph by Klaus Truemper.

http://www.emis.de/monographs/md/

Matroid Miscellany

References, sources and open problem, collected by Thomas Zaslavsky.

http://www.math.binghamton.edu/zaslav/Matroids/

Carmakers 'affect entire US economy'

The chairman of the Senate committee deciding whether to rescue the Detroit Three carmakers says the health of the entire US economy is at stake.

news.bbc.co.uk

Lie detectors for benefit claims

Voice-recognition lie detectors are used by two Welsh councils in a bid to clamp down on people making false benefits claims.

news.bbc.co.uk

Bank cuts UK rates to 57-year low

The Bank of England has cut interest rates by one percentage point from 3% to 2%, their lowest level since 1951.

news.bbc.co.uk

DNA database 'breached rights'

Keeping the DNA of two Britons with no convictions was a breach of their human rights, a European court rules.

news.bbc.co.uk

Putin rules out early Kremlin bid

Russian Prime Minister Vladimir Putin says he will wait until 2012 to decide whether to run again for the presidency.

news.bbc.co.uk

Keane resigns as Sunderland boss

Roy Keane stands down as Sunderland manager after 27 months in charge at the Stadium of Light.

news.bbc.co.uk

Interest rates

Which lenders are passing on the rate cuts to customers?

news.bbc.co.uk

US Congresswoman hangs up on Obama

A US Congresswoman hangs up the phone on President-elect Barack Obama, thinking the call is a hoax.

news.bbc.co.uk

DNA dilemma

Will European ruling result in more unsolved crimes?

news.bbc.co.uk

Liverpool hit by Torres setback

Liverpool striker Fernando Torres faces a minimum of four weeks on the sidelines because of a hamstring injury.

news.bbc.co.uk

Kenya PM calls for Mugabe removal

Power-sharing in Zimbabwe is dead and Africa must unite to oust President Mugabe, says Kenya's prime minister.

news.bbc.co.uk

Nice smell...

But why else would anyone buy a new car these days?

news.bbc.co.uk

Rhys killing 'appalled country'

The murder of schoolboy Rhys Jones was a terrible killing which appalled the whole country, a judge tells a jury in his summing up.

news.bbc.co.uk

Banks move to match interest cut

Northern Ireland's 'big four' banks say they will be matching the latest cut in interest rates by the Bank of England.

news.bbc.co.uk

Send your video, pictures and story ideas

Have you got a good story? BBC News wants to hear from you.

news.bbc.co.uk

Cash glow

How much does one street light cost for one night?

news.bbc.co.uk

No decision over Shields pardon

The High Court reserves judgement in the case of jailed Liverpool fan Michael Shields, who has started a pardon bid.

news.bbc.co.uk

Pietersen praises collective move

England captain Kevin Pietersen says he did not have to persuade any of his Test squad to return to India following the Mumbai terror attack.

news.bbc.co.uk

Child protection review announced

The Scottish Government announces a wide-ranging review of guidance on child protection practices.

news.bbc.co.uk

Your pictures

Readers' images of snowfalls across the UK

news.bbc.co.uk

PM 'has confidence' in Speaker

Gordon Brown says he has a "great deal of confidence" in House of Commons Speaker Michael Martin.

news.bbc.co.uk

Mother guilty over Shannon kidnap

Shannon Matthews's mother and co-accused Michael Donovan are convicted of kidnapping the nine-year-old in a plot to claim a £50,000 reward.

news.bbc.co.uk

Menezes family's inquest protest

The family of Jean Charles de Menezes have walked out of the inquest into his death at the Oval Cricket Ground in London in protest.

news.bbc.co.uk

Peace chance?

How S Asian rivals could capitalise on Mumbai attacks

news.bbc.co.uk

Controversial Lapland theme park closes down

A Lapland-style theme park in the New Forest criticised by visitors as "hell" and a "scam" closes down permanently.

news.bbc.co.uk