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In this paper, we consider the factor properties and gap sequence of aspecial type of cutting sequence with slope $\theta=[0;\dot{d}]$, denoted by$F_{d,\infty}$. Let $\omega$ be a factor of $F_{d,\infty}$, then it occurs inthe sequence infinitely many times. Let $\omega_p$ be the $p$-th occurrence of$\omega$ and $G_p(\omega)$ be the gap between $\omega_p$ and $\omega_{p+1}$. Wedefine the $d$ types of kernel words and envelope words, give two versions of"uniqueness of kernel decomposition property". Using them, we prove the gapsequence $\{G_p(\omega)\}_{p\geq1}$ has exactly two distinct elements for each$\omega$, and determine the expressions of gaps completely. Furthermore, weprove that the gap sequence is $\sigma_i(F_{d,\infty})$, where $\sigma_i$ is asubstitution depending only on the type of $Ker(\omega)$, i.e. the kernel wordof $\omega$. We also determine the position of $\omega_p$ for all $(\omega,p)$.As applications, we study some combinatorial properties, such as the power,overlap and separate property between $\omega_p$ and $\omega_{p+1}$ for all$(\omega,p)$, and find all palindromes in $F_{d,\infty}$.

Gap Sequence of Cutting Sequence with Slope $\theta=[0;\dot{d}]$