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123 221 (0,172s)

Result

Origin and evolution of genes and genomes. Crucial role of triplet expansions

A novel concept on mechanisms of evolution of genes and genomes is suggested: the sequences evolve largely by local events of triplet expansion and subsequent mutational changes in the repeats.Life which, presumably, started with re...

EB - Genetika a molekulární biologie

  • 2012
  • Jx
  • Link
Result

Symmetry nonintegrability for extended K(m, n, p) equation

In the present paper we study symmetries of extended K(m, n, p) equations and prove that the equations from this class have no generalized symmetries of order greater than five and hence are not symmetry integrable....

Pure mathematics

  • 2022
  • Jimp
  • Link
Result

Lipschitzian De Morgan triplets of fuzzy connectives

After studying Lipschitzian strong negations, Lipschitzian De Morgan triplets (T, S, n), where T is a triangular norm, S a triangular conorm, and n a strong negation, are investigated. The relationships between the best Lip...

BA - Obecná matematika

  • 2010
  • Jx
Result

The Darboux coordinates for a new family of Hamiltonian operators and linearization of associated evolution equations

with constant coefficients and linearizes any evolution equation which is bi-Hamiltonian withrespect to a pair of any nontrivial linear combinations of the operators H((N,0)) . We of compatible Hamiltonian operators of the...

BA - Obecná matematika

  • 2011
  • Jx
  • Link
Result

Role of Everlasting Triplet Expansions in Protein Evolution

triplets,all of three known pathologically expanding classes GCU (GCU, CUG, UGC, AGC, TCT).The spontaneous expansions continued to occur all the way during evolution acid repeats, as preferred triplets encoding the repeats...

EB - Genetika a molekulární biologie

  • 2011
  • Jx
  • Link
Result

N-site-lattice analogues of V(x) = ix(3)

A discrete N-level alternative to the popular imaginary cubic oscillator is proposed and studied. As usual, the unitarity of evolution is guaranteed by the introduction of an ad hoc, Hamiltonian-dependent inner-product metr...

BE - Teoretická fyzika

  • 2012
  • Jx
  • Link
Result

On the classification of conditionally integrable evolution systems in (1 + 1) dimensions

$(1 + 1)$-dimensional evolution equations of order $n$ that admit an $N$-shock-type solution with $N leq n + 1$. For this, we develop a refinement)$-dimensional evolution systems $u_t = ...

BA - Obecná matematika

  • 2006
  • Jx
Result

On local time-dependent symmetries of integrable evolution equations

We consider a scalar (1+1)-dimensional evolution equation of order n=>2 which of this equation. We show that if such an equation possesses the nontrivial canonical conserved generalized symmetries (except ...

BA - Obecná matematika

  • 2000
  • D
Result

Discrete symplectic systems, boundary triplets, and self-adjoint extensions

the theory of boundary triplets with special attention paid to the quasiregular and limit difference equation) is also investigated thoroughly, while higher order equations, self-adjoint extensions, and boundary triple...

Pure mathematics

  • 2022
  • Jimp
  • Link
Result

Composite Quantum Coriolis Forces

and Heisenberg-like dynamical evolution equations we show that another, amended and potentially simplified theory can be based on an auxiliary N-term factorization to a multiplet of alternative eligible Coriolis f...

Atomic, molecular and chemical physics (physics of atoms and molecules including collision, interaction with radiation, magnetic resonances, Mössbauer effect)

  • 2023
  • Jimp
  • Link
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