When S satisfies the Type II condition, N is closed under both ordinary matrix product and Hadamard (entry-wise) product, and N becomes a commutative algebra (with unity element)
Zaslavski, Generic existence of solutions of minimization problems with an increas- ing cost function, to appear in Nonlinear
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
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
Tanaka , An isoperimetric problem for infinitely connected complete open surfaces, Geometry of Manifolds (K. Shiohama, ed.), Perspec- tives in Math. Shioya , On asymptotic behaviour