Timeline for Is a semigroup always an exponential?
Current License: CC BY-SA 3.0
6 events
| when toggle format | what | by | license | comment | |
|---|---|---|---|---|---|
| Jan 2, 2014 at 22:42 | answer | added | András Bátkai | timeline score: 3 | |
| Dec 18, 2013 at 6:57 | comment | added | Uwe Stroinski | The spectrum of $A$ has to be contained in a proper left half-plane. | |
| Dec 17, 2013 at 18:48 | review | Close votes | |||
| Dec 17, 2013 at 22:02 | |||||
| Dec 17, 2013 at 18:32 | answer | added | Michael Renardy | timeline score: 6 | |
| Dec 17, 2013 at 17:40 | comment | added | BSteinhurst | The answer to the first part of your question is to point you at the Hille-Yosida Theorem and its various cousins. They should be in any standard functional analysis textbook. More can't be said about the spectrum unless you have more detail about the operators $S(t)$. | |
| Dec 17, 2013 at 17:33 | history | asked | smyrlis | CC BY-SA 3.0 |