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trees and plants
Hello. So, the question is do you know any applications of topological spaces which are not homeomorphic to R^n in physics? Motivation for the question i am making: as i think if a topological space is homeomorphic to R^n then differential calculus is allowed on it. Modern physics uses i think differential equations so i am interested in learning if these kind of topological spaces are used in physics and physicists have considered them interesting for applications in physics. Thank you.