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Old-fashioned doughnuts – cinnamon sugar (left), chocolate glazed (centre top) and maple glazed (right). Shape shown is typical of commercially available buttermilk donuts. The old-fashioned doughnut is a term used for a variety of cake doughnut prepared in the shape of a ring with a cracked surface and tapered edges around it. [1]
In logic, a set of symbols is commonly used to express logical representation. The following table lists many common symbols, together with their name, how they should be read out loud, and the related field of mathematics.
The Arrows block (U+2190–U+21FF) contains line, curve, and semicircle arrows and arrow-like operators. The math subset of this block is U+2190–U+21A7, U+21A9–U+21AE, U+21B0–U+21B1, U+21B6–U+21B7, U+21BC–U+21DB, U+21DD, U+21E4–U+21E5, U+21F4–U+21FF.
Since the stabilizer operators of the toric code are quasilocal, acting only on spins located near each other on a two-dimensional lattice, it is not unrealistic to define the following Hamiltonian, H T C = − J ∑ v A v − J ∑ p B p , J > 0. {\displaystyle H_{\rm {TC}}=-J\sum _{v}A_{v}-J\sum _{p}B_{p},\,\,\,J>0.}
d'Alembert operator. In special relativity, electromagnetism and wave theory, the d'Alembert operator (denoted by a box: ), also called the d'Alembertian, wave operator, box operator or sometimes quabla operator [1] ( cf. nabla symbol) is the Laplace operator of Minkowski space. The operator is named after French mathematician and physicist ...
ACP-131 [1] is the controlling publication for the listing of Q codes and Z codes. It is published and revised from time to time by the Combined Communications Electronics Board (CCEB) countries: Australia, New Zealand, Canada, United Kingdom, and United States. When the meanings of the codes contained in ACP-131 are translated into various ...
The Cooper Do-nuts Riot was an alleged uprising in reaction to police harassment of LGBT people at a 24-hour donut cafe in Los Angeles in the 1960s. Whether the riot actually happened, the date, location and whether or not the cafe was a branch of the Cooper chain are all disputed, and there is a lack of contemporary documentary evidence, with the Los Angeles Police Department (LAPD) stating ...
In Clifford analysis, the operator D : C ∞ (R k ⊗ R n, S) → C ∞ (R k ⊗ R n, C k ⊗ S) acting on spinor valued functions defined by f ( x 1 , … , x k ) ↦ ( ∂ x 1 _ f ∂ x 2 _ f … ∂ x k _ f ) {\displaystyle f(x_{1},\ldots ,x_{k})\mapsto {\begin{pmatrix}\partial _{\underline {x_{1}}}f\\\partial _{\underline {x_{2}}}f\\\ldots ...
Properties. V ∗ ( f ) ( t ) = ∫ t 1 f ( s ) d s . {\displaystyle V^ {*} (f) (t)=\int _ {t}^ {1}f (s)\,ds.} V is a Hilbert–Schmidt operator, hence in particular is compact. [2] V has no eigenvalues and therefore, by the spectral theory of compact operators, its spectrum σ ( V) = {0}. [2] [3]
In quantum mechanics, the exchange operator , also known as permutation operator, is a quantum mechanical operator that acts on states in Fock space. The exchange operator acts by switching the labels on any two identical particles described by the joint position quantum state . [1]
