405. [v. a. θ; D. 6. b.] Inverse tabular functions

On Θ-precontinuous Functions

We introduce a new class of functions called θ-precontinuous functions which is contained in the class of weakly precontinuous (or almost weakly continuous) functions and contains the class of almost precontinuous functions. It is shown that the θprecontinuous image of a p-closed space is quasi H-closed. 2000 Mathematics Subject Classification. 54C08.

Pediatr Drugs 2003; 5 (6): 385-405

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 386 1. Mechanisms of Action of Prostaglandins . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ....

On Pre-θ-Open Sets and Two Classes of Functions

A Note on Θ-closed Sets and Inverse Limits

For every Hausdorff space X the space XΘ is introduced. If X is H-closed, then XΘ is a quasy-compact T1-space. If f : X → Y is a mapping, then there exists the mapping fΘ : XΘ → YΘ. We say that a mapping f : X → Y is Θ-closed if fΘ is a closed mapping. If X and Y are H-closed and if f : X → Y is a HJ-mapping, then fΘ is Θ-closed. Let X = {Xa, pab, A} be an inverse system of H-closed spaces Xa a...

A 6-b 1Gsample/s SiGe BiCMOS A/D Converter

Very high-speed A/D converters are widely used in hard disk read channels, high-speed Ethernet transceivers and satellite receivers. For such applications a resolution of 6-b at a sampling speed of 1GS/s or higher is usually required. In literature some CMOS implementations are reported, featuring a sampling speed between 0.8 and 1.6-GS/s and power consumption between 300 and 500mW [1,2,3,4]. T...