The Infona portal uses cookies, i.e. strings of text saved by a browser on the user's device. The portal can access those files and use them to remember the user's data, such as their chosen settings (screen view, interface language, etc.), or their login data. By using the Infona portal the user accepts automatic saving and using this information for portal operation purposes. More information on the subject can be found in the Privacy Policy and Terms of Service. By closing this window the user confirms that they have read the information on cookie usage, and they accept the privacy policy and the way cookies are used by the portal. You can change the cookie settings in your browser.
By constructing a special cone and using the spectrum theory of a bounded positive operator and fixed point index theory, this paper deals with the existence of positive solutions for the singular semipositone boundary value problem on time scales, and thus improves and generalizes the results of related papers. Emphasis is put on the fact that the nonlinear term f may take a negative value. An example...
Set the date range to filter the displayed results. You can set a starting date, ending date or both. You can enter the dates manually or choose them from the calendar.