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math.FA2002★ 1 cited
Spectrum as the Support of Functional Calculus
Vladimir V. Kisil
We investigate the new definition of analytic functional calculus in the terms of representation theory of SL2(R). We avoid any usage of its algebraic homomorphism property and rep…
math.FA2002
Tokens: An Algebraic Construction Common in Combinatorics, Analysis, and Physics
Vladimir V. Kisil
We give a brief account of a construction called tokens here, which is significant in algebra, analysis, combinatorics, and physics. Tokens allow to express a semigroup on one set…