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In [10, 12], it was established the generic existence of solutions of problem (1.2) for certain classes of increasing lower semicontinuous functions f.. Note that the
We find the criteria for the solvability of the operator equation AX − XB = C, where A, B , and C are unbounded operators, and use the result to show existence and regularity
By employing the theory of topological degree, M -matrix and Lypunov functional, We have obtained some sufficient con- ditions ensuring the existence, uniqueness and global
Then, the existence and uniform boundedness of global solutions and stability of the equilibrium points for the model of weakly coupled reaction- diffusion type are discussed..
In the further part, using the generalized Dirac matrices we have demonstrated how we can, from the roots of the d’Alembertian operator, generate a class of relativistic
In the further part, using the generalized Dirac matrices we have demonstrated how we can, from the roots of the d’Alembertian operator, generate a class of relativistic
We present sufficient conditions for the existence of solutions to Neu- mann and periodic boundary-value problems for some class of quasilinear ordinary differential equations.. We
the existence of a weak solution for the problem for a viscoelastic material with regularized contact stress and constant friction coefficient has been established, using the