Some Basic Results on Actions of Nonaffine Algebraic Groups.- On Chevalley#x2013;Shephard#x2013;Todd#x2019;s Theorem in Positive Characteristic.- Families of Affine Fibrations.- On the Depth of Modular Invariant Rings for the Groups #x00D7;.- K#x00E4;hlerian Reduction in Steps.- On Orbit Decompositions for Symmetric -Varieties.- Root Systems for Levi Factors and Borel#x2013;de Siebenthal Theory.- Polarizations and Nullcone of Representations of Reductive Groups.- Decomposing Symmetric Powers of Certain Modular Representations of Cyclic Groups.- Differential Operators on Grassmann Varieties.
