# Syzygies of A Tower of Compact Local Hermitian Symmetric Spaces of Finite Type

## TL;DR

This paper establishes conditions under which certain line bundles on compact local Hermitian symmetric spaces exhibit property N_p, and applies these results to towers of such spaces, also deriving criteria for projective normality of curves.

## Contribution

It provides new criteria for property N_p of line bundles on symmetric spaces and applies these to towers of spaces, also addressing projective normality of algebraic curves.

## Key findings

- Line bundles satisfy property N_p under specific curvature and radius conditions.
- For large towers, the canonical bundle 2K_s has property N_p.
- Criteria for projective normality of algebraic curves are established.

## Abstract

Let $X$ be a $n$ dimensional compact local Hermitian symmetric space of non-compact type and $L=\shO(K_X)\tens\shO(qM)$ be an adjoint line bundle. Let $c>0$ be a constant. Assume the curvature of $M$ is $\ge c\omega$, where $\omega$ is the k\"ahler form of $X$, and $X$'s injectivity radius has a lower bound $\tau>\sqrt{2e}$, where $e$ is the Euler number. In this article, we prove that if $q>\frac{2e}{c\tau} \cdot (p+1)n$, then $L$ enjoys Property $N_p$. Applying this result to a tower of compact local Hermitian symmetric spaces $\cdots\mapto X_{s+1}\mapto X_s\mapto\cdots\mapto X_0=X$, we prove that $2K_{s}$ has Properties $N_p$ for $s\gg 0$ and fixed $p$. Based on the same technique, we show a criterion of projective normality of algebraic curves and a division theorem with small power difference.