Results 11 to 20 of about 2,135,480 (327)

Degenerate Diffusion Operators Arising in Population Biology [PDF]

open access: green, 2011
We analyze a class of partial differential equations that arise as "backwards Kolmogorov operators" in infinite population limits of the Wright-Fisher models in population genetics and in mathematical finance. These are degenerate elliptic operators defined on manifolds with corners. The classical example is the Kimura diffusion operator, which acts on
Epstein, Charles L., Mazzeo, Rafe
openaire   +3 more sources

Pragmatic turn in biology: From biological molecules to genetic content operators

open access: diamondWorld Journal of Biological Chemistry, 2014
Erwin Schrödinger's question "What is life?" received the answer for decades of "physics + chemistry". The concepts of Alain Turing and John von Neumann introduced a third term: "information". This led to the understanding of nucleic acid sequences as a natural code. Manfred Eigen adapted the concept of Hammings "sequence space".
Guenther Witzany
  +6 more sources

A Tri-Gene Ontology Migration Operator for Improving the Performance of Meta-heuristics in Complex Detection Problems

open access: yesIraqi Journal of Science, 2023
      Detecting protein complexes in protein-protein interaction (PPI) networks is a challenging problem in computational biology. To uncover a PPI network into a complex structure, different meta-heuristic algorithms have been proposed in the literature.
Isra H. Abdulateef   +2 more
semanticscholar   +1 more source

The Fourier-Laplace Transform—A Conjugate Link Between the Material Brain and the Conscious Mind

open access: yesFrontiers in Human Neuroscience, 2021
Recent attempts to establish the quantum boundaries of life is pursued. A pre-existing view of quantum biology is supplemented by the formulation of modern advances in theoretical chemical physics and quantum chemistry.
Erkki J. Brändas
doaj   +1 more source

Boundary Value Problem for a Loaded Pseudoparabolic Equation with a Fractional Caputo Operator

open access: yesMathematics, 2023
Differential equations containing fractional derivatives, for both time and spatial variables, have now begun to attract the attention of mathematicians and physicists; they are used in connection with these equations as mathematical models of various ...
S. Aitzhanov   +2 more
semanticscholar   +1 more source

ON SOME SPECTRAL PROPERTIES OF DISCRETE STURM-LIOUVILLE OPERATOR

open access: yesFundamental Journal of Mathematics and Applications, 2023
Time scale theory helps us to combine differential equations with difference equations. Especially in models such as biology, medicine and economics, since the independent variable is handled discrete, it requires us to analyze in discrete clusters ...
Ayşe Çiğdem Yar   +2 more
semanticscholar   +1 more source

Dynamics of one-dimensional spin models under the line-graph operator [PDF]

open access: yesProceedings of the Royal Society A, 2021
We investigate the application of the line-graph operator to one-dimensional spin models with periodic boundary conditions. The spins (or interactions) in the original spin structure become the interactions (or spins) in the resulting spin structure.
M. Javarone, Josh O'Connor
semanticscholar   +1 more source

Enhanced Operational Semantics in Systems Biology [PDF]

open access: yes, 2003
We are faced with a great challenge: the cross-fertilization between the fields of formal methods for concurrency, in the computer science domain, and systems biology in the biological realm.
DEGANO, PIERPAOLO, PRIAMI CORRADO
openaire   +1 more source

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