Some mathematical news
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The 2019 paper “Quantum supremacy using a programmable superconducting processor” asserted that Google’s Sycamore quantum computer, with 53 qubits and a depth of 20, performed a specific computation in about 200 seconds. According to Google’s estimate, a state-of-the-art classical supercomputer … Continue reading →
Moshe Vardi wrote a short interesting essay “What is theoretical computer science?” (It followed by interesting posts on Facebook.) Moshe argues that Thinking of theoretical computer science (TCS) as a branch of mathematics is harmful to the discipline. I personally … Continue reading →
“Time for Peace” (זמן לשלום), Lyrics: Amnon Abutbul, Yair Dalal, Fathi Kasem; Melody: Amnon Abutbul. Performing Shlomit Aharon and Yevgeni Shapovalov. This year I had the rare event that the new Jewish year coincides with my birthday, and “time for … Continue reading →
There are very many irrational numbers but proving irrationality of a specific number is not a common event. A few weeks ago Frank Calegari, Vesselin Dimitrov, and Yunqing Tang posted a paper that proved the irrationality of . In fact … Continue reading →
Viterbo conjecture – refuted Claude Viterbo’s 2000 volume-capacity conjecture asserts that the Euclidean (even dimensional) ball maximizes (every) symplectic capacity among convex bodies of the same volume. In the recent paper A Counterexample to Viterbo’s Conjecture, Pazit Haim-Kislev and Yaron … Continue reading →