Examples of using Mathbb in English and their translations into Vietnamese
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Consider the set$\mathbb{R}$ of real numbers.
Note that for each$n\in\mathbb{N}$:}$.
For R= Z,{\displaystyle R=\mathbb{Z},} the set of even numbers is a prime ideal.
For which there exists N∈ N{\displaystyle N\in\mathbb{N}}.
So every ideal of$\mathbb{Z}$ is a principal ideal,so$\mathbb{Z}$ is a principal ideal domain.
Consider the ring Z{\displaystyle\mathbb{Z}} of integers.
In R n{\displaystyle\mathbb{R}^{n}}, an arbitrary autonomous dynamical system can be written as.
Is a vector space over R{\displaystyle\mathbb{R}}.
Since HHS is specified in R 2{\displaystyle\mathbb{R}^{2}}, we need a Hamiltonian with 2 degrees of freedom to model it.
A vector field on R 2{\displaystyle\mathbb{R}^{2}}.
Consider R 2{\displaystyle\mathbb{R}^{2}} with its standard topology and let K be the set{ 1/ n| n∈ N}{\displaystyle\{ 1/n~|~ n\ in\ mathbb{ N}\}}.
The simplest example is that of R n{\displaystyle\mathbb{R}^{n}}.
Examples of perfect subsets of the real line R{\displaystyle\mathbb{R}} are: the empty set, all closed intervals, the real line itself, and the Cantor set.
Where{v1,…, vn}is a basis for R n{\displaystyle\mathbb{R}^{n}}.
It can also be defineddirectly on the cylinder manifold R× S{\displaystyle\mathbb{R}\times S} with coordinates( t′, φ){\displaystyle(t',\varphi)} by the metric.
Consider the following differential equationwith solution x{\displaystyle x} on R{\displaystyle\mathbb{R}}.
Given a set S and functions f n: S→ C{\displaystyle f_{n}:S\to\mathbb{C}}(or to any normed vector space), the series.
The tangent bundle of the circle is also trivial andisomorphic to S 1× R{\displaystyle S^{1}\times\mathbb{R}}.
If f: S n→ R n{\displaystyle f:S^{n}\to\mathbb{R}^{n}} is continuous then there exists an x∈ S n{\displaystyle x\in S^{n}} such that: f(- x)= f( x){\displaystyle f(- x)= f( x)}.
A rupture field of X 2+ 1{\displaystyle X^{2}+1} over R{\displaystyle\mathbb{R}} is C{\displaystyle\mathbb{C}}.
R→ R{\displaystyle F:\mathbb{R}\rightarrow\mathbb{R}} and G: R→ R{\displaystyle G:\mathbb{R}\rightarrow\mathbb{R}} be two everywhere differentiable functions.
The distance between distinct sequences( a n),( b n)∈ R N,{\displaystyle( a_{ n}),( b_{n})\ in R^{\ mathbb{ N}},} is defined to be.
Consider the sequences of functions An and Un from R{\displaystyle\mathbb{R}} into R{\displaystyle\mathbb{R}} for n∈ N 0{\displaystyle n\in\mathbb{N}_{0}} defined by.
The three-dimensional lens spaces L( p; q){\displaystyle L(p;q)} are quotients of S 3{\displaystyle S^{3}}by Z/ p{\displaystyle\mathbb{Z}/p}-actions.
I was considering periodicfunctions that were differentiable at every point in$\mathbb{R}$, but I realize that a function only has to be differentiable at all points in its domain to be considered differentiable.
The linearity of the Stokes equations in the case of an incompressible Newtonian fluid means that a Green's function,J(r){\displaystyle\mathbb{J}(\mathbf{r})}, exists.
No subset of R n{\displaystyle\mathbb{R}^{n}} is homeomorphic to S n{\displaystyle S^{n}} The ham sandwich theorem: For any compact sets A1,…, An in R n{\displaystyle\mathbb{R}^{n}} we can always find a hyperplane dividing each of them into two subsets of equal measure.
Prominent examples of commutative rings include polynomial rings, rings of algebraic integers,including the ordinary integers Z{\displaystyle\mathbb{Z}}, and p-adic integers.[1].
With an equilibrium point at y= 0{\displaystyle y=0} is a scalar function V: R n→ R{\displaystyle V:\mathbb{R}^{n}\to\mathbb{R}} that is continuous, has continuous derivatives, is locally positive-definite, and for which-∇ V⋅ g{\displaystyle-\nabla{V}\cdot g} is also locally positive definite.
More precisely, let p{\displaystyle p} and q{\displaystyle q} be coprime integers and consider S 3{\displaystyle S^{3}}as the unit sphere in C 2{\displaystyle\mathbb{C}^{2}}.