Sharp estimates of transition probability density for Bessel process in half-line

In this paper we study the Bessel process R_t^{(μ)} with index μ\neq 0 starting from x>0 and killed when it reaches a positive level a, where x>a>0. We provide sharp estimates of the transition probability density p_a^{(μ)}(t,x,y) for the whole range of space parameters x,y>a and every t>0.

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