R. N. Gumerov, E. V. Lipacheva, K. A. Shishkin, “Categorical criterion for existence of universal $C^*$–algebras”, Ufimsk. Mat. Zh., 16:3 (2024), 118–129; Ufa Math. J., 16:3 (2024), 113–124
Functors between $*$-polynomial relations K. A. Shishkin International conference "Theory of functions and its applications" dedicated to the 120th anniversary of S. M. Nikol'skii July 5, 2025 13:20
Topological C*-relations K. A. Shishkin Functional Analysis and Quantum Systems February 20, 2025 16:30
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Î ôóíêòîðàõ â òåîðèè óíèâåðñàëüíûõ $C^*$-àëãåáð K. A. Shishkin International scientific conference “Infinite-dimensional analysis and mathematical physics” (IDAMPh 2025) January 28, 2025 18:20
Î ïîëíîòå $C^\ast$-ñîîòíîøåíèé R. N. Gumerov, K. A. Shishkin International conference
“Theory of Functions, Operator Theory and Quantum Information Theory” June 11, 2024 14:30