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A linear algebraic group over an algebraically closed field k is a subgroup of a group GL n (k) of invertible n × n-matrices with entries in k, whose elements are precisely the solutions of a set of… (More)
Let G be a connected reductive linear algebraic group over an algebraically closed field of characteristic not 2. Let θ be an automorphism of order 2 of the algebraic group G. Denote by K the fixed… (More)
The 1963 Gottingen notes of T. A. Springer are well-known in the field but have been unavailable for some time. This book is a translation of those notes, completely updated and revised. The part of… (More)
We give several complements to the paper ‘The Bruhat order on symmetric varieties’. Our main result shows that the partial order on the set ℐ of twisted involutions in the Weyl groupW, which was… (More)
Phenylalkyl sulphones of the formula wherein R represents hydrogen, halogen or alkyl of 1 to 4 carbon atoms, R1 represents alkyl of 1 to 4 carbon atoms, and R2 represents hydrogen, and, if R is… (More)