@article{dd35e3d27b7149ba9c246fb876dfeb6b,
title = "Non-commutative circuits and the sum-of-squares problem",
keywords = "Algebraic complexity, Composition of sums of squares",
author = "Pavel Hrube{\v s} and Avi Wigderson and Amir Yehudayoff",
year = "2011",
month = jul,
doi = "10.1090/S0894-0347-2011-00694-2",
language = "אנגלית",
volume = "24",
pages = "871--898",
journal = "Journal of the American Mathematical Society",
issn = "0894-0347",
publisher = "American Mathematical Society",
number = "3",
}