On the Genus of the Zero-Divisor Graph of <svg xmlns:xlink="http://www.w3.org/1999/xlink" xmlns="http://www.w3.org/2000/svg" style="vertical-align:-4.60088pt;width:25.375px;" id="M1" height="20.825001" version="1.1" viewBox="0 0 25.375 20.825001" width="25.375">
	
		
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<table>The reduction of <svg height="16.4125" id="M371" style="vertical-align:-3.25793pt" version="1.1" viewbox="0 0 45.25 16.4125" width="45.25" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink">
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International Journal of Combinatorics

fig4

Figure 4

Figure 4: On the Genus of the Zero-Divisor Graph of <svg xmlns:xlink="http://www.w3.org/1999/xlink" xmlns="http://www.w3.org/2000/svg" style="vertical-align:-4.60088pt;width:25.375px;" id="M1" height="20.825001" version="1.1" viewBox="0 0 25.375 20.825001" width="25.375">
	
		
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