An analog of extended real line, [Formula: see text]-sphere and [Formula: see text]-disc in the setting of digital topology has been provided and the fundamental group of the digital circle… Click to show full abstract
An analog of extended real line, [Formula: see text]-sphere and [Formula: see text]-disc in the setting of digital topology has been provided and the fundamental group of the digital circle has been computed which comes out to be the additive group [Formula: see text] of integers.
               
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