How is the inheritance to be divided among: a son, a son's daughter, two full brothers, and six full brothers' sons, knowing that the deceased is a widowed woman?

If a woman's heirs are limited to her son, her son's sons, her brothers, and her brothers' sons, then the sole heir is her son. This is because he excludes (by complete deprivation) her son's sons, her brothers, and their sons. He is therefore the most entitled among the 'asabah to the entire inheritance.