HOMOLOGICAL EXPRESSIONS OF THE TITS FORM OF A FINITE DIMENSIONAL ALGEBRA

摘要

Let k be an algebraically closed field and A be a finite-dimensional associative basic k-algebra of the form A=kQ/I where Q is a quiver without oriented cycles or double arrows and I is an admissible ideal of kQ. Consider the Tits form qA and the corresponding (nonsymmetric) bilinear form