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Questions related from Gianluca Argentini
Let f be a real continuous 2Pi (= 2 x 3.14...) -periodic function with Fourier series having null all the harmonic components of order < N. The Sturm-Hurwitz Theorem states that f has at least 2N...
16 November 2017 4,917 1 View
What is the state of art about synthetic fuels, liquid or gaseous? Are there yet some examples of use for flame/combustion process? Gianluca
15 November 2017 8,700 3 View
As minimal surface we can consider a surface (in R3 or Rn or Cn, where C = complex field) with zero mean curvature. What are the most useful applications to scientific disciplines or technical...
10 November 2017 8,156 8 View
Suppose to have the unit square D = [0, 1] x [0, 1] and two-dim Navier-Stokes equations + continuity (e.g. dimensionless form uux+vuy = -px +1/Rey (uxx+uyy)). Are there a Reynolds number value...
06 November 2017 5,109 0 View
Banach-Tarski Theorem (also known as Paradox) is a mathematical statement which says that a sphere can be splitted into two (or an integer N...) spheres each equal to the original one. Do you know...
31 October 2017 9,600 2 View
Some news about state of the art about Steve Smale 21th century problems; in particular, I'm interested on "Mean Value Problem" (not inserted in original Smale's 1998 list, but formulated by Smale...
25 October 2017 4,123 1 View
Which is the status of mathematical research about existence and unicity for Navier-Stokes equations (and boundary problems) for finite or infinite domains? Gianluca
18 October 2017 1,829 3 View
In a 2010 paper Construction of classic exact solutions for Tricomi equation I have proposed a method for generalized Tricomi pde uxx + a(x)uyy = 0 construction of analytical solutions. But there...
11 October 2017 8,602 4 View
Applicability on the range of fluid dynamics for bodies moving in a fluid such air, Re about 103. Thanks. Gianluca
19 September 2017 4,630 4 View
