Let Ω := (a, b) ⊂ R, m ∈ L1 (Ω) and λ > 0 be a real parameter. Let L be the differential operator given by Lu := −φ (u) + r (x) φ (u), where φ : R → R is an odd increasing homeomorphism and 0 ≤ r ∈ L1 (Ω). We study the ...

Non-intrusive diagnostic methods, such as Rayleigh scattering technique have the advantage of not causing disturbance in the burning fuel and oxidant. This work used the Rayleigh scattering technique to determine the ...

Given a strictly increasing continuous function φ from [0, 1] to [0, 1] and its pseudo-inverse φ[−1], conditions that φ must satisfy for C φ (x1, . . . ,xn)=φ[−1](C(φ(x1), . . . ,φ(xn))) to be a copula for any copula C are ...

By a ϕ-variety V we mean a supervariety or a ∗-variety generated by an associative algebra over a field F of characteristic zero. In this case, we can consider its sequence of ϕ-codimensions cϕ n(V). We say that V is minimal ...

Using Leray-Schauder degree theory and the method of upper andlower solutions we establish existence and multiplicity of solutions for problemsof the form(ϕ(u0))0 = f(t, u, u0)u(0) = u(T) = u0(0),where ϕ is an increasing ...

Sean Ω un dominio suave y acotado en RN, hλ: Ω x [0,∞) → R una función Carathéodory, λ>0 un parámetro real y ϕ: RN → RN una función continua estrictamente monótona. En esta tesis estudiamos la existencia de soluciones ...