From his official Google+ plus post, Google CEO Larry Page express his sympathies and condolences to the former Apple CEO Steve Jobs and his family and also visible to the Google Homepage Tribute.
In his statement:
I am very, very sad to hear the news about Steve. He was a great man with incredible achievements and amazing brilliance. He always seemed to be able to say in very few words what you actually should have been thinking before you thought it. His focus on the user experience above all else has always been an inspiration to me. He was very kind to reach out to me as I became CEO of Google and spend time offering his advice and knowledge even though he was not at all well. My thoughts and Google’s are with his family and the whole Apple family.
Source: Larry Page Google Plus Account