berlin chancellor angela merkel bavarian ally still hope three-way coalition government form end year even though negotiators make little progress bridge deep divisions week senior party official say friday merkel try unite conservative alliance consist cdu bavarian csu sister party pact green pro-business free democrats form government conservatives place first lose seat election last month meet 11 hours thursday three camp resign talk next week make little headway contentious issue immigration climate policy aim exploratory talk stage mid-november tell party committees yes work let us begin concrete negotiations say manfred weber senior member csu involve talk hope new government end year tell broadcaster bayerischer rundfunk add difficult immigration divisive topic thursday many conservatives want take hard line blame election setback merkel decision open germany million mainly middle eastern migrants 2015 2016. negotiators meet next monday thursday time want seek solution refugee policy source close talk say agreement reach merkel cdu csu cap annual refugee number basis coalition accord andreas scheuer csu general secretary say thursday talk green oppose refugee cap politicians say could take months form coalition leave germany hobble european union look wealthy country leadership governance reform german csu hop coalition year 's end despite tricky talk