In remembrance of our dear colleague Irene Dorfman. Abstract Poisson brackets associated with Lax operators of lattice systems are considered. Linear brackets originate from various r-matrices on the algebra of (pseudo-) shift symbols. Quadratic brackets are investigated which provide Hamiltonian formulations for various reductions of the (modiied) Lattice KP hierarchy.

Remembering the coronavirus pandemic represents an obligation to present and future. Illuminating intersections between remembrance, documentary heritage, memory institutions COVID-19, this article argues that libraries, archives museums have a unique urgent duty document as it unfolds help ensure its associated recorded heritage is collected, preserved archived for future purposes of consultat...

aim and background: the concept of god concept is transferred to individuals by means of cultural and theological media. it is a conceptual understanding of people about the attributes of god and is closely associated with their mental health. the aim of the current study was to predict symptoms based on the concept of god in iranian medical students. methods and materials: in this correlationa...

It is with great sadness that we received the news Tony Allan has passed away on 15 April 2021 [...]

there are three main ideas about relation between creatures and god. one of them is the theory of separation, according to this theory there's not any homogeneity between creatures and god it means the essence and existence of creatures are completely inhomogeneity with god's essence and existence. the second is the theory of oneness, according to this theory creatures and god are uni...