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  1. prije 4 sata

    . now offers selected users a new feature: while reading a full-text of a publication, they can hover over a reference to view its details & open the referenced publication in a new tab cc

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  2. proslijedio/la je Tweet
    28. sij
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  3. proslijedio/la je Tweet
    17. pro 2019.

    Big news from ! Zentralblatt (the world’s most comprehensive and longest-running abstracting and reviewing service in pure and applied mathematics) - will be Open Access from 2021!

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    2. velj

    A lot of tweets about miss that 02 February 2020 is a palindrome in USA, UK and ISO formats; it is a palindrome day of the year (33) and there are a palindrome of days left in the year (333). This will never happen again. More details here:

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    Mathematical Congress of the Americas will take place 19-24 July 2021 in Buenos Aires, Argentina. Find the Call for special sessions and list of invited speakers, and register for email news at .

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  6. proslijedio/la je Tweet
    prije 21 sat
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  7. proslijedio/la je Tweet
    29. sij
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    2. velj

    Robert Wald mentions (in his General Relativity) an interesting partial order relation on the set of spacetimes (M,g), with metric g, and citing Zorn's Lemma. It is: (M,g) ≤ (M',g') if M can be isometrically embedded in M' with their Cauchy surfaces preserved.

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    3. pro 2019.

    ICYMI: the published papers mostly show NO significant differences from the respective & preprints cc Free to read link ⬆️ made using 👉

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  10. proslijedio/la je Tweet
    31. sij
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  11. proslijedio/la je Tweet
    31. sij

    In I like to place my commas inside dollar signs $...$ as opposed to outside (where possible) since when it compiles it looks more like a comma than a period. Thus, would write "$f(x) = x,$" instead of "$f(x) = x$,". (If I'm picky, blame it on my gramma's genes.)

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  12. proslijedio/la je Tweet
    1. velj

    35 years ago today, Richard Feynman's paper "Quantum Mechanical Computers" was published in 𝘖𝘱𝘵𝘪𝘤𝘴 𝘕𝘦𝘸𝘴. I think he'd be surprised and gratified to see everything that his original idea has led to.

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    22. sij

    A collection of articles to celebrate 40 years of Wave Motion, An International Journal Reporting Research on Wave Phenomena. Read all articles free online until 31st December 2020

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    27. sij

    Eigenvectors are a useful tool in describing the structure of Hermitian (or, more generally, normal) matrices in terms of their similarity with diagonal matrices. The structure of all matrices, however, requires we consider generalized eigenvectors and eigenspaces.

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  15. proslijedio/la je Tweet
    27. tra 2019.

    Einstein's Relativity and Everyday Life (GPS) by C. M. Will To deepen see this paper of mine:

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  16. proslijedio/la je Tweet
    30. sij
    Odgovor korisnicima

    My favorite work introduces a novel class of exactly solvable systems on 4D spacetime (think three space dimensions + time) and, most importantly, shows that there is significantly more such systems than it was long believed. See or

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  17. proslijedio/la je Tweet
    30. sij

    ICYMI: plan to be away without access to your university network & need access to or other AMS e-products like journals & books? Activate Remote Access before your trip & get 90 days of access from everywhere. More at cc

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  18. proslijedio/la je Tweet
    18. sij

    Want to make your Maple documents accessible to students or colleagues who don’t have Maple? If you put your documents in the MapleCloud, they are accessible to anyone you choose, using only a web browser!

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  19. proslijedio/la je Tweet
    23. pro 2019.

    Notes on Category Theory with examples from basic mathematics. ~ Paolo Perrone ().

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  20. proslijedio/la je Tweet
    29. sij

    The trace of operators on Hilbert space, when defined, is independent of which orthonormal basis one picks (so is an invariant). Here, this is stated for "positive" operators T*T where T* is the analogue of the conjugate-transpose for matrices.

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