KURDISH SETBACK IN IRAQ REPORTED
Iraqi armor and infantry units have reptdly pushed Kurdish rebels out of several militarily important mountain areas in north since Govt offensive began there on Mar 7; this is reptd in Teheran on Mar 10 by supporters of Kurdish leader Gen Mustafa al-Barzani; there is no confirmation from Iranian officials that reptd Iraqi offensive has actually been going on; offensive began only hrs after it was announced in Algiers that Iran and Iraq signed agreement there to end border clashes between their forces and to settle their long-standing dispute over frontiers; announcement made no mention of Kurdish issue, but it was reptd that accord, which called for halt to subversive infiltration across border, also included Iranian agreement to stop supporting Kurds in Iraq in their efforts to achieve autonomy; 1 target of Iraqi air raids appears to have been Barzani's hq in Choman area; more than 100 people reptdly were killed; Iranian Foreign Min Abbas Ali Khalatbari and Iraqi Foreign Min Saadun Hamadi are to work out details of agreement with Algerian Foreign Min Abdelaziz Bouteflika, who is mediating dispute; talks are expected to include plight of Kurdish refugees in Iran and problem of ethnic Iranians who were expelled from Iraq last yr; illus Barzani with some of his men in Iraq in '74; map (M)