In this paper, a new definition of numerical radius for adjointable operators in Hilbert -module space will be introduced. We also give a new proof of numerical radius inequalities for Hilbert space operators.

By introducing the concepts of order almost Dunford-Pettis and almost weakly limited operators in Banach lattices, we give some properties of them related to some well known classes of operators, such as, order weakly compact, order Dunford-Pettis, weak and almost Dunford- Pettis and weakly limited operators. Then, we characterize Banach lat- tices E and F on which each operator from E into F t...

the complex and hasty worldwide changes in the areas of sciences, skills, values and criteria have forced most of the successful organizations throughout the world to shift their goals, methods and structures towards implementing creativity and innovation to provide a productive environment. in this essay, after having defined the concept of creativity, from every angle, the difference between ...

proper speech functioning in human being, depends on the precise coordination and timing balances in a series of complex neuro nuscular movements and actions. starting from the prime organ of energy source of expelled air from respirato y system; deliver such air to trigger vocal cords; swift changes of this phonatory episode to a comprehensible sound in resonace and final coordination of all h...

in the present paper an operator-differential equation of second order in complex domain isconsidered when the coefficients have singularity of pole type at the point z=0. a theorem of existence of thesolution of the equation is proved and the spectral property of the solution is separately investigated when thecoefficients are spectral operators.

Trapezoidal intuitionistic fuzzy numbers (TrIFNs) express abundant and flexible information in a suitable manner and  are very useful to depict the decision information in the procedure of decision making. In this paper, some new aggregation operators, such as, trapezoidal intuitionistic fuzzy weighted power harmonic mean (TrIFWPHM) operator, trapezoidal intuitionistic fuzzy ordered weighted po...

innovation and sustainable development have been considered fundamental elements in the competitive positioning of companies. the synergies between both concepts, known as eco-innovation, must be considered when designing company policies. the aim of this paper is to analyse which moderating factors determine how innovative companies perform when implementing a sustainable proactive approach. w...