Results 1 to 10 of about 539,595 (279)

Annotation-free delineation of prokaryotic homology groups. [PDF]

open access: yesPLoS Computational Biology, 2022
Phylogenomic studies of prokaryotic taxa often assume conserved marker genes are homologous across their length. However, processes such as horizontal gene transfer or gene duplication and loss may disrupt this homology by recombining only parts of genes,
Yongze Yin, Huw A Ogilvie, Luay Nakhleh
doaj   +2 more sources

Persistent homology of groups [PDF]

open access: yesJournal of Group Theory, 2010
We introduce and investigate notions of persistent homology for p-groups and for coclass trees of p-groups. Using computer techniques we show that persistent homology provides fairly strong homological invariants for p-groups of order at most 81.
Ellis, Graham, King, Simon A.
core   +3 more sources

Homology of Gaussian groups [PDF]

open access: yesAnnales de l'Institut Fourier, 2001
We describe new combinatorial methods for constructing an explicit free resolution of Z by ZG-modules when G is a group of fractions of a monoid where enough least common multiples exist (``locally Gaussian monoid''), and, therefore, for computing the ...
Dehornoy, Patrick, Lafont, Yves
core   +3 more sources

Homology groups in CR-warped products of complex space forms [PDF]

open access: yesHeliyon
In the present paper, by using the result of Lawson-Simons [15], we adopt a different technique to show that there are no stable integral q-currents and a non-trivial homology group in a compact oriented CR-warped product submanifold Nn in a complex ...
Yanlin Li   +4 more
doaj   +2 more sources

Homology groups of cubical sets [PDF]

open access: yesApplied Categorical Structures, 2018
The paper is devoted to homology groups of cubical sets with coefficients in contravariant systems of Abelian groups. The study is based on the proof of the assertion that the homology groups of the category of cubes with coefficients in the diagram of ...
Husainov, Ahmet A.
core   +3 more sources

The homology of the Higman-Thompson groups [PDF]

open access: yesInventiones mathematicae, 2018
We prove that Thompson's group $V$ is acyclic, answering a 1992 question of Brown in the positive. More generally, we identify the homology of the Higman-Thompson groups $V_{n,r}$ with the homology of the zeroth component of the infinite loop space of ...
Szymik, Markus, Wahl, Nathalie
core   +8 more sources

Three Novel Genomes Broaden the Wild Side of the Capsicum Pangenome [PDF]

open access: yesPlant Direct
This study presents three genome assemblies within the Capsicum genus, enabling comprehensive comparative analyses for the Annuum and Baccatum complexes within the genus.
Christina Papastolopoulou   +15 more
doaj   +2 more sources

On the Topology of Warped Product Pointwise Semi-Slant Submanifolds with Positive Curvature

open access: yesMathematics, 2021
In this paper, we obtain some topological characterizations for the warping function of a warped product pointwise semi-slant submanifold of the form Ωn=NTl×fNϕk in a complex projective space CP2m(4).
Yanlin Li   +3 more
doaj   +1 more source

The Homology of Warped Product Submanifolds of Spheres and Their Applications

open access: yesMathematics, 2023
The aim of the current article is to formulate sufficient conditions for the Laplacian and a gradient of the warping function of a compact warped product submanifold Σβ1+β2 in a unit sphere Sd that provides trivial homology and fundamental groups.
Lamia Saeed Alqahtani   +3 more
doaj   +1 more source

On the homology groups $H_k(\mathbb{C}\Omega_n)$, $k=1, ..., n$

open access: yesResearches in Mathematics, 2021
In the paper the homology groups of the $(2n+1)$-dimensional CW-complex $\mathbb{C}\Omega_n$ are investigated. The spaces $\mathbb{C}\Omega_n$ consist of complex-valued functions and generalize the widely known in the approximation theory spaces ...
A.M. Pasko
doaj   +1 more source

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