Skip to main content
MathOverflow

Return to Question

added 5 characters in body
Source Link
Francesco Polizzi
Francesco Polizzi
  • 66.3k
  • 5
  • 180
  • 283

Let $A$ be an $E_1$-algebra in chain complexes over $\mathbb Q$. Is there an easy way to check if $A$ admits the structure of an $E_2$-algebra (or $E_\infty$-algebra)?

Is there an easy way to check if $A$ admits the structure of an $E_2$-algebra (or $E_\infty$-algebra)?

Let $A$ be an $E_1$-algebra in chain complexes over $\mathbb Q$. Is there an easy way to check if $A$ admits the structure of an $E_2$-algebra (or $E_\infty$-algebra)?

Let $A$ be an $E_1$-algebra in chain complexes over $\mathbb Q$.

Is there an easy way to check if $A$ admits the structure of an $E_2$-algebra (or $E_\infty$-algebra)?

Source Link
qqqqqqw
qqqqqqw
  • 965
  • 4
  • 8

Obstructions to $E_2$-algebra structure on $E_1$-algebra

Let $A$ be an $E_1$-algebra in chain complexes over $\mathbb Q$. Is there an easy way to check if $A$ admits the structure of an $E_2$-algebra (or $E_\infty$-algebra)?