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		| Paper: | 
		The Circumnuclear Environment in M31 | 
	 
	
		| Volume: | 
		439, The Galactic Center: a Window to the Nuclear Environment of Disk Galaxies | 
	 
	
		| Page: | 
		468 | 
	 
	
		| Authors: | 
		Li, Z. | 
	 
	
	
		| Abstract: | 
		We present an observational overview of the circumnuclear environment
 in M31 and a tentative understanding of its regulation. Notes on
 selected open issues, as well as
 on a comparison with the Galactic Center and other extragalactic circumnuclear environments, are also presented. | 
	 
	
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