Juan Weisz

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Questions related from Juan Weisz

Is there a concrete math representation for Fermionic anticommutation relations for indefinite number of states?

Take the Fermionic creation and destruction operators ad (k) and a(k) where ad means a dagger. One has a set of relationships including ad(k) ad(k) =0 , a(k)a(k)=0 a(k) a(l) + a(l) a(k)...

11 November 2018 6,319 5 View

What name is given, or suggested, for this class of numbers.?

In addition to the Complex field, also ring x+ty, tt=-1 There are hyperbolic ring x+ty, tt=1 or dual ring x+ty, tt=0 t becomes abstractly a new strange number similar to i. In general...

11 November 2018 5,416 0 View

Are mathematical objects to be stipulated by properties or descriptions?

For example we may describe vectors by stating they are as forces with magnitude and direction or by properties that they add and there is a scalar product. However in the second case matrices...

08 August 2017 3,867 8 View

What is the name of this transformed series? Is this known?

Let us give the power series f(x) = c0 + c1 x + c2 xx + c3 xxx +.... From this define a modified series with capital F F(x) = c0 + c1 x +c2 x(x+h) + c3 x(x+h)(x+2h) +... This is really a...

07 July 2017 8,924 6 View

Do some hamiltonians make no sense?

Suppose we have a parametrized hamiltonian in QM. H(b) Now take two different values of the parameter b1 and b2, so we have H(b1) and H(b2). The problem is now that H(b1) and H(b2) are found not...

10 October 2015 9,579 13 View