Ah, yes. Our Sadkov the academician. I'm sorry, but Markov isn't the only one. There is Chebyshev, Mendeleev, Pavlov, Vernadsky, Lyapunov, Cherenkov, fucking Gamov is of Russian origin, the list is fucking endless.

And you must know that just studying something similar in a different context isn't the same as studying it in the context and the framework that establishes it as something foundational. It's pretty common occurrence in science/math in that something is not named after the person who first published something, but after the person who established it as something foundational.

Russia is by no means a leading country in terms of its scientific contribution, especially per capita, but it has some share of them starting from the 19th century. You lenses on the other hand, with which you try to observe this are just distortions. And they'll continue to distort, because you need to continue to justify yourself and your journey.