Local Homotopy Theory Basic References [1] Lecture Notes on
... weak equivalences of simplicial sets in all stalks — I call these local weak equivalences, and for which the cofibrations are the monomorphisms. This is a special case of a construction for arbitrary Grothendieck sites. ...
... weak equivalences of simplicial sets in all stalks — I call these local weak equivalences, and for which the cofibrations are the monomorphisms. This is a special case of a construction for arbitrary Grothendieck sites. ...
Lattices in Lie groups
... In this section, we consider the simple case of lattices on the real vector space Rn . The results established in this section will be helpful in proving the Minkowski reduction of the next section. We first note that Rn is the real span of the standard basis vectors e1 , e2 , ·, en . The integral s ...
... In this section, we consider the simple case of lattices on the real vector space Rn . The results established in this section will be helpful in proving the Minkowski reduction of the next section. We first note that Rn is the real span of the standard basis vectors e1 , e2 , ·, en . The integral s ...
Topological Methods in Combinatorics
... called homotopic (denoted f0 ' f1 ), if they can be deformed into each other. More exactly, there exists a continuous mapping F : T1 × [0, 1] → T2 such that f0 (x) = F (x, 0) and f1 (x) = F (x, 1). We say that T1 and T2 are homotopy equivalent (denoted by K1 ' K2 ), if there exist continuous maps f ...
... called homotopic (denoted f0 ' f1 ), if they can be deformed into each other. More exactly, there exists a continuous mapping F : T1 × [0, 1] → T2 such that f0 (x) = F (x, 0) and f1 (x) = F (x, 1). We say that T1 and T2 are homotopy equivalent (denoted by K1 ' K2 ), if there exist continuous maps f ...
MATLab Tutorial #6
... When using the term-by-term multiplication, the vectors/matrices being multiplied must be the same size, since corresponding terms are multiplied. This is not what we typically think of as matrix multiplication. If we were to do a regular multiplication of these two vectors: >> x * y ??? Error usin ...
... When using the term-by-term multiplication, the vectors/matrices being multiplied must be the same size, since corresponding terms are multiplied. This is not what we typically think of as matrix multiplication. If we were to do a regular multiplication of these two vectors: >> x * y ??? Error usin ...
The Dot Product
... if π/2 < θ ≤ π, we see that a ∙ b is positive for θ < π/2 and negative for θ > π/2. We can think of a ∙ b as measuring the extent to which a and b point in the same direction. ...
... if π/2 < θ ≤ π, we see that a ∙ b is positive for θ < π/2 and negative for θ > π/2. We can think of a ∙ b as measuring the extent to which a and b point in the same direction. ...
Блок D.
... Example 4D.10. Vitali set. We consider the circle М with unit length and irrational number . Let Аn : М М be the transformation of turn the circle to the angle n, where n is an integer number. We determine the equivalence on М such that the relation ху is true if у = Аnх for a number n (see ...
... Example 4D.10. Vitali set. We consider the circle М with unit length and irrational number . Let Аn : М М be the transformation of turn the circle to the angle n, where n is an integer number. We determine the equivalence on М such that the relation ху is true if у = Аnх for a number n (see ...