4 papers
Embedding more than 8 symplectic balls in
SÃlvia Anjos, Jarek KÄdra, Martin Pinsonnault
We prove that the space of symplectic embeddings of standard balls into the standard complex projective plane , normalized so that a line has symp…
A refinement of bounded cohomology
ÅwiatosÅaw R. Gal, Jarek KÄdra
We introduce a refinement of bounded cohomology and prove that the suitable comparison homomorphisms vanish for an amenable group. We investigate in this context Thompson's group F…
Minimum Cost Super-Hedging in a Discrete Time Incomplete Multi-Asset Binomial Market
Jarek KÄdra, Assaf Libman, Victoria Steblovskaya
We consider a multi-asset incomplete model of the financial market, where each of risky assets follows the binomial dynamics, and no assumptions are made on the joint dis…
Embeddings of symplectic balls into the complex projective plane
SÃlvia Anjos, Jarek KÄdra, Martin Pinsonnault
We investigate spaces of symplectic embeddings of balls into the complex projective plane. We prove that they are homotopy equivalent to explicitly described algebraic su…