Israeli Prime Minister Ehud Olmert will not meet with Palestinian President Mahmoud Abbas on Thursday, at the Palestinians' request, an official in the prime minister's office said Wednesday. Abbas confidant Saeb Erekat said the two sides were in disagreement over the Palestinians' request that Israel release withheld Palestinian taxes. Israel was also unwilling to accept a Palestinian demand that Israel agree to revive a collapsed cease-fire in the Gaza Strip and extend it to the West Bank, Palestinian officials said.