Zobrazeno 1 - 10
of 1 765
pro vyhledávání: '"A. Valdman"'
Autor:
Roubal, Tomáš, Valdman, Jan
This paper investigates a path-following method inspired by the semismooth$^*$ approach for solving algebraic inclusions, with a primary emphasis on the role of uniform subregularity. Uniform subregularity is crucial for ensuring the robustness and s
Externí odkaz:
http://arxiv.org/abs/2410.23871
Autor:
Béreš, Michal, Valdman, Jan
This contribution examines the capabilities of the Python ecosystem to solve nonlinear energy minimization problems, with a particular focus on transitioning from traditional MATLAB methods to Python's advanced computational tools, such as automatic
Externí odkaz:
http://arxiv.org/abs/2407.04706
When writing high-performance code for numerical computation in a scripting language like MATLAB, it is crucial to have the operations in a large for-loop vectorized. If not, the code becomes too slow to use, even for a moderately large problem. Howe
Externí odkaz:
http://arxiv.org/abs/2404.16039
We present efficient MATLAB implementations of the lowest-order primal hybrid finite element method (FEM) for linear second-order elliptic and parabolic problems with mixed boundary conditions in two spatial dimensions. We employ the Crank-Nicolson f
Externí odkaz:
http://arxiv.org/abs/2401.15557
Many problems in science and engineering can be rigorously recast into minimizing a suitable energy functional. We have been developing efficient and flexible solution strategies to tackle various minimization problems by employing finite element dis
Externí odkaz:
http://arxiv.org/abs/2309.13028
Publikováno v:
Медицинская иммунология, Vol 26, Iss 6, Pp 1197-1204 (2024)
Imbalance of Th1/Th2 lymphocytes and cytokines is responsible for increasing rate of pathology, such as allergy, autoimmune processes and cancer. Pyrimidines have a wide spectrum of pharmacological activity, for example antiallergic properties. The a
Externí odkaz:
https://doaj.org/article/bd51278cdc234aa1a1da6c5bb4057a7d
Let $Q$ be a Lipschitz domain in $\mathbb{R}^n$ and let $f \in L^{\infty}(Q)$. We investigate conditions under which the functional $$I_n(\varphi)=\int_Q |\nabla \varphi|^n+ f(x)\,\mathrm{det} \nabla \varphi\, \mathrm{d}x $$ obeys $I_n \geq 0$ for al
Externí odkaz:
http://arxiv.org/abs/2306.11022
Autor:
Krömer, Stefan, Valdman, Jan
We analyze a term penalizing surface self-penetration, as a soft constraint for models of hyperelastic materials to approximate the Ciarlet-Ne\v{c}as condition (almost everywhere global invertibility of deformations). For a linear elastic energy subj
Externí odkaz:
http://arxiv.org/abs/2302.06268
Autor:
Johanna A. Hundvin, Unn Hege Lilleøren, Alexander Valdman, Bruno Sorcini, John Alfred Brennsæter, Camilla G. Boer, Helge E.S. Pettersen, Kathrine R. Redalen, Inger Marie Løes, Sara Pilskog
Publikováno v:
Physics and Imaging in Radiation Oncology, Vol 32, Iss , Pp 100663- (2024)
Background and purpose: Image-guided proton beam therapy (IG-PBT) and cone-beam CT (CBCT)-based online adaptive photon radiotherapy (oART) have potentials to restrict radiation toxicity. They are both hypothesised to reduce therapy limiting bowel tox
Externí odkaz:
https://doaj.org/article/67f7bc613e7a4b5d92395769c8bcaad9
Autor:
Drozdenko, Daria, Knapek, Michal, Kružík, Martin, Máthis, Kristián, Švadlenka, Karel, Valdman, Jan
We formulate a large-strain model of single-slip crystal elastoplasticity in the framework of energetic solutions. Numerical performance of the model is compared with lab experiments on the compression of a stack of note papers.
Externí odkaz:
http://arxiv.org/abs/2207.01986