On the structure of the set of solutions of equations involving ๐ด-proper mappings
On the structure of the set of solutions of equations involving ๐ด-proper mappings
Let <italic>X</italic> and <italic>Y</italic> be Banach spaces having complete projection schemes (say, for example, they have Schauder bases). We consider various properties of mappings <inline-formula content-type="math/mathml"> <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" alttext="upper T colon upper D subset-of upper X right-arrow upper Y"> <mml:semantics> <mml:mrow> <mml:mi>T</mml:mi> <mml:mo>:</mml:mo> <mml:mi>D</mml:mi> <mml:mo>โ<!-- โ --></mml:mo> <mml:mi>X</mml:mi> <mml:mo stretchy="false">โ<!-- โฆ