Unsolved problems in plastid transformation

Unsolved Problems

We start with this number a new section of this journal : that of unsolved problems. In this section unsolved problems will be proposed, at the same time some information about previous results in the direction of the problem in question will be given . Problems for this section as well as comments on published problems should be sent to G. ALEXITS, editor of the section, to the address of the ...

Unsolved problems of noise

Random noise, and its effect on physical systems, has always been an interdisciplinary subject. Using the study of fluctuations as a unifying theme can lead to interesting scientific conferences, such as the recent UPoN’99 meeting in Adelaide, Australia∗ Over the years, noise has attracted some of the best scientists: in 1828 the botanist Robert Brown discovered the random fluctuations of tiny ...

Solved and unsolved problems in generalized notions of Connes amenability

We survey the recent investigations on (bounded, sequential) approximate Connes amenability and pseudo-Connes amenability for dual Banach algebras. We will discuss the core problems concerning these notions and address the signicance of any solutions to them to the development of the eld.

Unsolved problems in combinatorial games

The numbers in parentheses are the old numbers used in each of the lists of unsolved problems given on pp. 183–189 of AMS Proc. Sympos. Appl. Math. 43 (1991), called PSAM 43 below; on pp. 475–491 of Games of No Chance, hereafter referred to as GONC; on pp. 457–473 of More Games of No Chance (MGONC); and on pp. 475–500 of Games of No Chance 3 (GONC3). Some numbers have little more than the state...

Unsolved Problems in Intuitive Geometry