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In Lithuanian, the R with tilde “R̃, r̃” is rarely used and is found in some grammar texts, dictionaries or textbooks. The tilde is used like the circumflex, it indicates the long tonic accent. Therefore, the R with a tilde indicates an /r/ that is part of a diphthong with a tonic accent.
R rotunda Variant of r [9] ᴙ: Small capital reversed R Nonstandard IPA /ʢ/ cf. Cyrillic: Я я: FUT [2] ꭆ Small capital R with right leg Teuthonista [4] ɹ ʴ: Turned R IPA /ɹ/ IPA voiced alveolar approximant: ᴚ: Small capital turned R Obsolete IPA /χ/ FUT [2] ʁ ʶ: Small capital inverted R IPA /ʁ/ IPA voiced uvular fricative ꭉ R ...
The tilde was originally one of a variety of marks written over an omitted letter or several letters as a scribal abbreviation (a "mark of contraction"). [3] Thus, the commonly used words Anno Domini were frequently abbreviated to A o Dñi, with an elevated terminal with a contraction mark placed over the "n".
In 2005, the topological asymptotic expansion for the Laplace equation with respect to the insertion of a short crack inside a plane domain had been found. It allows to detect and locate cracks for a simple model problem: the steady-state heat equation with the heat flux imposed and the temperature measured on the boundary. [ 6 ]
Phonemic notation commonly uses IPA symbols that are rather close to the default pronunciation of a phoneme, but for legibility often uses simple and 'familiar' letters rather than precise notation, for example /r/ and /o/ for the English [ɹʷ] and [əʊ̯] sounds, or /c, ɟ/ for [t͜ʃ, d͜ʒ] as mentioned above.
In quantum mechanics, the Gorini–Kossakowski–Sudarshan–Lindblad equation (GKSL equation, named after Vittorio Gorini, Andrzej Kossakowski, George Sudarshan and Göran Lindblad), master equation in Lindblad form, quantum Liouvillian, or Lindbladian is one of the general forms of Markovian master equations describing open quantum systems.
Evidently, conformality of metrics is an equivalence relation. Here are some formulas for conformal changes in tensors associated with the metric. (Quantities marked with a tilde will be associated with ~, while those unmarked with such will be associated with .)
Here we give a simple derivation of the Peierls substitution, which is based on The Feynman Lectures (Vol. III, Chapter 21). [3] This derivation postulates that magnetic fields are incorporated in the tight-binding model by adding a phase to the hopping terms and show that it is consistent with the continuum Hamiltonian.