How does Gramsci define hegemony, and what is its significance in understanding power relations between dominant and subordinate groups? What does Gramsci mean by the concept of "coercion and consent" in relation to hegemony? How does this understanding challenge traditional notions of domination? According to Gramsci, why is the failure of the Piedmont bourgeoisie to form a unified nation$-$state important in understanding the concept of hegemony? How does Gramsci view hegemony as a contested and dynamic process rather than a fixed and monolithic ideological formation? In what ways does Gramsci's understanding of hegemony contribute to our understanding of the relationship between state formation and everyday forms of action?